Dell Latitude 3520 Service Manual

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Latitude 3520

Service Manual

Reg ula tor y M ode l: P10 8F Reg ula tor y T ype : P 108 F00 1/P108F002 202 1 Rev . A 00

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Notes, cautions, and warnings

NOTE: A NOTE indicates important information that helps you make better use of your product.

CAUTION: A CAUTION indicates either potential damage to hardware or loss of data and tells you how to avoid

the problem.

WARNING: A WARNING indicates a potential for property damage, personal injury, or death.

© 2021 Dell Inc. or its subsidiaries. All rights reserved. Dell, EM C, and other trademarks are trademarks of Dell Inc. or its subsidiaries. Oth er trademarks may be trademarks of their respective owners.

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Contents

Chapter 1: Working inside your computer...................................................................................... 7

Safety instructions.............................................................................................................................................................. 7

Before working inside your computer....................................................................................................................... 7

Entering Service Mode.................................................................................................................................................8

Exiting Service Mode.................................................................................................................................................... 8

Safety precautions........................................................................................................................................................ 8

Electrostatic discharge—ESD protection............................................................................................................... 9

ESD field service kit ..................................................................................................................................................... 9

Transporting sensitive components.........................................................................................................................10

After working inside your computer........................................................................................................................ 10

Chapter 2: Removing and installing components...........................................................................11

Recommended tools...........................................................................................................................................................11

Screw List............................................................................................................................................................................ 12

Major components of your system................................................................................................................................ 14

MicroSD-card......................................................................................................................................................................15

Removing the microSD-card..................................................................................................................................... 15

Installing the MicroSD-card....................................................................................................................................... 16

SIM card tray...................................................................................................................................................................... 16

Removing the SIM card tray......................................................................................................................................16

Installing the SIM card tray........................................................................................................................................ 17

Base cover........................................................................................................................................................................... 18

Removing the base cover...........................................................................................................................................18

Installing the base cover............................................................................................................................................ 20

Battery cable....................................................................................................................................................................... 21

Removing the battery cable...................................................................................................................................... 21

Installing the battery cable........................................................................................................................................22

Battery................................................................................................................................................................................. 23

Lithium-ion battery precautions...............................................................................................................................23

Removing the 3-cell battery..................................................................................................................................... 24

Installing the 3-cell battery....................................................................................................................................... 24

Removing the 4-cell battery..................................................................................................................................... 25

Installing the 4-cell battery....................................................................................................................................... 26

Memory module................................................................................................................................................................. 27

Removing the memory module................................................................................................................................. 27

Installing the memory module...................................................................................................................................28

M.2 solid-state drive thermal plate............................................................................................................................... 30

Replacing the M.2 solid-state drive thermal plate.............................................................................................. 30

M.2 solid-state drive conversion bracket.....................................................................................................................31

Removing the M.2 solid-state drive conversion bracket....................................................................................31

Installing the M.2 solid-state drive conversion bracket......................................................................................31

M.2 solid-state drive.........................................................................................................................................................32

Removing the M.2 2230 solid-state drive............................................................................................................. 32

Installing the M.2 2230 solid-state drive............................................................................................................... 33

Contents 3

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Removing the M.2 2280 solid-state drive............................................................................................................. 34

Installing the M.2 2280 solid-state drive............................................................................................................... 34

Hard-disk drive...................................................................................................................................................................35

Removing the hard-disk drive.................................................................................................................................. 35

Removing the hard-disk drive bracket................................................................................................................... 36

Installing the hard-disk drive bracket..................................................................................................................... 37

Installing the hard-disk drive.....................................................................................................................................38

WLAN card..........................................................................................................................................................................39

Removing the WLAN card.........................................................................................................................................39

Installing the WLAN card........................................................................................................................................... 40

WWAN card........................................................................................................................................................................ 42

Removing the WWAN card....................................................................................................................................... 42

Installing the WWAN card......................................................................................................................................... 43

I/O cable..............................................................................................................................................................................44

Removing the I/O cable.............................................................................................................................................44

Installing the I/O cable............................................................................................................................................... 45

Display assembly................................................................................................................................................................46

Removing the display assembly............................................................................................................................... 46

Installing the display assembly..................................................................................................................................49

System fan...........................................................................................................................................................................51

Removing the system fan.......................................................................................................................................... 51

Installing the system fan.............................................................................................................................................51

Heatsink assembly.............................................................................................................................................................52

Removing the heatsink assembly............................................................................................................................ 52

Installing the heatsink assembly...............................................................................................................................53

Power adapter port.......................................................................................................................................................... 54

Removing the power adapter port.......................................................................................................................... 54

Installing the power adapter port............................................................................................................................55

Coin-cell battery................................................................................................................................................................ 56

Removing the coin-cell battery................................................................................................................................ 56

Installing the coin-cell battery.................................................................................................................................. 57

USB cable............................................................................................................................................................................58

Removing the USB cable...........................................................................................................................................58

Installing the USB cable.............................................................................................................................................59

Ethernet port......................................................................................................................................................................60

Removing the ethernet port..................................................................................................................................... 60

Installing the ethernet port........................................................................................................................................ 61

I/O board.............................................................................................................................................................................62

Removing the I/O board............................................................................................................................................62

Installing the I/O board.............................................................................................................................................. 63

Power-button board.........................................................................................................................................................64

Removing the power-button board.........................................................................................................................64

Installing the power-button board...........................................................................................................................64

System board..................................................................................................................................................................... 65

Removing the system board..................................................................................................................................... 65

Installing the system board....................................................................................................................................... 68

Speakers.............................................................................................................................................................................. 72

Removing the speaker................................................................................................................................................ 72

Installing the speaker.................................................................................................................................................. 72

Touchpad ............................................................................................................................................................................73

Contents

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Removing the touchpad.............................................................................................................................................73

Installing the touchpad............................................................................................................................................... 74

WWAN I/O board .............................................................................................................................................................75

Removing the WWAN I/O board............................................................................................................................. 75

Installing the WWAN I/O board............................................................................................................................... 76

Palmrest assembly............................................................................................................................................................. 77

Removing the palmrest assembly............................................................................................................................ 77

Installing the palmrest assembly.............................................................................................................................. 78

Display bezel.......................................................................................................................................................................80

Removing the display bezel...................................................................................................................................... 80

Installing the display bezel..........................................................................................................................................81

Display panel....................................................................................................................................................................... 82

Removing the display panel.......................................................................................................................................82

Installing the display panel.........................................................................................................................................85

Camera.................................................................................................................................................................................88

Removing the camera ............................................................................................................................................... 88

Installing the camera ................................................................................................................................................. 88

Display cable....................................................................................................................................................................... 89

Removing the display cable ..................................................................................................................................... 89

Installing the display cable ....................................................................................................................................... 90

Display back-cover............................................................................................................................................................92

Removing the display back-cover........................................................................................................................... 92

Installing the display back-cover..............................................................................................................................92

Chapter 3: Drivers and downloads............................................................................................... 94

Chapter 4: System setup............................................................................................................. 95

Boot menu...........................................................................................................................................................................95

Boot Sequence.................................................................................................................................................................. 95

Navigation keys..................................................................................................................................................................96

System setup options.......................................................................................................................................................96

Updating the BIOS in Windows ...................................................................................................................................106

Updating BIOS on systems with BitLocker enabled..........................................................................................106

Updating your system BIOS using a USB flash drive........................................................................................106

System and setup password......................................................................................................................................... 107

Assigning a system setup password......................................................................................................................107

Deleting or changing an existing system setup password............................................................................... 108

Chapter 5: Troubleshooting....................................................................................................... 109

Built-in self-test (BIST)................................................................................................................................................. 109

LCD Built-in Self Test (BIST)....................................................................................................................................... 109

Dell SupportAssist Pre-boot System Performance Check diagnostics...............................................................110

Running the SupportAssist Pre-Boot System Performance Check............................................................... 110

Diagnostic LED behavior..................................................................................................................................................111

Diagnostic error messages............................................................................................................................................. 112

System error messages...................................................................................................................................................115

Recovering the operating system................................................................................................................................ 115

Real-Time Clock (RTC Reset)....................................................................................................................................... 116

Flashing the BIOS............................................................................................................................................................. 116

Contents

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Backup media and recovery options............................................................................................................................ 116

WiFi power cycle.............................................................................................................................................................. 116

Flea power release............................................................................................................................................................117

Chapter 6: Getting help and contacting Dell............................................................................... 118

6 Contents

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Working inside your computer

Topics:

• Safety instructions

Safety instructions

Prerequisites

Use the following safety guidelines to protect your computer from potential damage and to ensure your personal safety. Unless otherwise noted, each procedure included in this document assumes that the following conditions exist:

● You have read the safety information that shipped with your computer.

● A component can be replaced or, if purchased separately, installed by performing the removal procedure in reverse order.

About this task

WARNING: Before working inside your computer, read the safety information that shipped with your computer.

For additional safety best practices information, see the Regulatory Compliance Homepage

CAUTION: Many repairs may only be done by a certified service technician. You should only perform

troubleshooting and simple repairs as authorized in your product documentation, or as directed by the online or

telephone service and support team. Damage due to servicing that is not authorized by Dell is not covered by

your warranty. Read and follow the safety instructions that came with the product.

CAUTION: To avoid electrostatic discharge, ground yourself by using a wrist grounding strap or by periodically

touching an unpainted metal surface at the same time as touching a connector on the back of the computer.

CAUTION: Handle components and cards with care. Do not touch the components or contacts on a card. Hold a

card by its edges or by its metal mounting bracket. Hold a component such as a processor by its edges, not by

its pins.

CAUTION: When you disconnect a cable, pull on its connector or on its pull-tab, not on the cable itself. Some

cables have connectors with locking tabs; if you are disconnecting this type of cable, press in on the locking

tabs before you disconnect the cable. As you pull connectors apart, keep them evenly aligned to avoid bending

any connector pins. Also, before you connect a cable, ensure that both connectors are correctly oriented and

aligned.

NOTE: Disconnect all power sources before opening the computer cover or panels. After you finish working inside the

computer, replace all covers, panels, and screws before connecting to the power source.

NOTE: The color of your computer and certain components may appear differently than shown in this document.

Before working inside your computer

Steps

1. Save and close all open files and exit all open applications.

2. Shut down your computer. Click Start >

If you are using a different operating system, see the documentation of your operating system for shut-down

NOTE:

instructions.

Power > Shut down.

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3. Disconnect your computer and all attached devices from their electrical outlets.

4. Disconnect all attached network devices and peripherals, such as keyboard, mouse, and monitor from your computer.

5. Remove any media card and optical disc from your computer, if applicable.

6. After the computer is unplugged, press and hold the power button for 5 seconds to ground the system board.

CAUTION: Place the computer on a flat, soft, and clean surface to avoid scratches on the display.

7. Place the computer face down.

Entering Service Mode

Service Mode allows users to immediately cut off electricity from the computer and conduct repairs without disconnecting the

battery cable from the system board.

To enter Service Mode:

1. Shut down your computer and disconnect the AC adapter.

2. Hold <B> key on the keyboard and press the power button for 3 seconds or until the Dell logo appears on the screen.

3. Press any key to continue.

NOTE: If the power adapter has not been disconnected, a message prompting you to remove the AC adapter appears

on the screen. Remove the AC adapter and then press any key to continue the Service Mode procedure.

NOTE: The Service Mode procedure automatically skips the following step if the Owner Tag of the computer is not

set up in advance by the manufacturer.

4. When the ready-to-proceed message appears on the screen, press any key to proceed. The computer emits three short beeps and shuts down immediately.

Once the computer shuts down, you may perform the replacement procedures without disconnecting the battery cable from the system board.

Exiting Service Mode

Service Mode allows users to immediately cut off electricity from the computer and conduct repairs without disconnecting the

battery cable from the system board.

To exit Service Mode:

1. Connect the AC adapter to the power-adapter port on your computer.

2. Press the power button to turn on the computer. Your computer will automatically return to normal functioning mode.

Safety precautions

The safety precautions chapter details the primary steps to be taken before performing any disassembly instructions.

Observe the following safety precautions before you perform any installation or break/fix procedures involving disassembly or reassembly:

● Turn off the system and all attached peripherals.

● Disconnect the system and all attached peripherals from AC power.

● Disconnect all network cables, telephone, and telecommunications lines from the system.

● Use an ESD field service kit when working inside any to avoid electrostatic discharge (ESD) damage.

● After removing any system component, carefully place the removed component on an anti-static mat.

● Wear shoes with non-conductive rubber soles to reduce the chance of getting electrocuted.

Standby power

Dell products with standby power must be unplugged before you open the case. Systems that incorporate standby power are essentially powered while turned off. The internal power enables the system to be remotely turned on (wake on LAN) and suspended into a sleep mode and has other advanced power management features.

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Unplugging, pressing and holding the power button for 15 seconds should discharge residual power in the system board.

Bonding

Bonding is a method for connecting two or more grounding conductors to the same electrical potential. This is done through the use of a field service electrostatic discharge (ESD) kit. When connecting a bonding wire, ensure that it is connected to bare metal and never to a painted or non-metal surface. The wrist strap should be secure and in full contact with your skin, and ensure that you remove all jewelry such as watches, bracelets, or rings prior to bonding yourself and the equipment.

Electrostatic discharge—ESD protection

ESD is a major concern when you handle electronic components, especially sensitive components such as expansion cards, processors, memory DIMMs, and system boards. Very slight charges can damage circuits in ways that may not be obvious, such as intermittent problems or a shortened product life span. As the industry pushes for lower power requirements and increased density, ESD protection is an increasing concern.

Due to the increased density of semiconductors used in recent Dell products, the sensitivity to static damage is now higher than in previous Dell products. For this reason, some previously approved methods of handling parts are no longer applicable.

Two recognized types of ESD damage are catastrophic and intermittent failures.

● Catastrophic – Catastrophic failures represent approximately 20 percent of ESD-related failures. The damage causes an immediate and complete loss of device functionality. An example of catastrophic failure is a memory DIMM that has received a static shock and immediately generates a "No POST/No Video" symptom with a beep code emitted for missing or nonfunctional memory.

● Intermittent – Intermittent failures represent approximately 80 percent of ESD-related failures. The high rate of intermittent failures means that most of the time when damage occurs, it is not immediately recognizable. The DIMM receives a static shock, but the tracing is merely weakened and does not immediately produce outward symptoms related to the damage. The weakened trace may take weeks or months to melt, and in the meantime may cause degradation of memory integrity, intermittent memory errors, etc.

Perform the following steps to prevent ESD damage:

● Use a wired ESD wrist strap that is properly grounded. The use of wireless anti-static straps is no longer allowed; they do not provide adequate protection. Touching the chassis before handling parts does not ensure adequate ESD protection on parts with increased sensitivity to ESD damage.

● Handle all static-sensitive components in a static-safe area. If possible, use anti-static floor pads and workbench pads.

● When unpacking a static-sensitive component from its shipping carton, do not remove the component from the anti-static

packing material until you are ready to install the component. Before unwrapping the anti-static packaging, ensure that you discharge static electricity from your body.

● Before transporting a static-sensitive component, place it in an anti-static container or packaging.

ESD field service kit

The unmonitored Field Service kit is the most commonly used service kit. Each Field Service kit includes three main components: anti-static mat, wrist strap, and bonding wire.

Components of an ESD field service kit

The components of an ESD field service kit are:

● Anti-Static Mat – The anti-static mat is dissipative and parts can be placed on it during service procedures. When using an anti-static mat, your wrist strap should be snug and the bonding wire should be connected to the mat and to any bare metal on the system being worked on. Once deployed properly, service parts can be removed from the ESD bag and placed directly on the mat. ESD-sensitive items are safe in your hand, on the ESD mat, in the system, or inside a bag.

● Wrist Strap and Bonding Wire – The wrist strap and bonding wire can be either directly connected between your wrist and bare metal on the hardware if the ESD mat is not required, or connected to the anti-static mat to protect hardware that is temporarily placed on the mat. The physical connection of the wrist strap and bonding wire between your skin, the ESD mat, and the hardware is known as bonding. Use only Field Service kits with a wrist strap, mat, and bonding wire. Never use wireless wrist straps. Always be aware that the internal wires of a wrist strap are prone to damage from normal wear and tear, and must be checked regularly with a wrist strap tester in order to avoid accidental ESD hardware damage. It is recommended to test the wrist strap and bonding wire at least once per week.

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● ESD Wrist Strap Tester – The wires inside of an ESD strap are prone to damage over time. When using an unmonitored kit, it is a best practice to regularly test the strap prior to each service call, and at a minimum, test once per week. A wrist strap tester is the best method for doing this test. If you do not have your own wrist strap tester, check with your regional office to find out if they have one. To perform the test, plug the wrist-strap's bonding-wire into the tester while it is strapped to your wrist and push the button to test. A green LED is lit if the test is successful; a red LED is lit and an alarm sounds if the test fails.

● Insulator Elements – It is critical to keep ESD sensitive devices, such as plastic heat sink casings, away from internal parts that are insulators and often highly charged.

● Working Environment – Before deploying the ESD Field Service kit, assess the situation at the customer location. For example, deploying the kit for a server environment is different than for a desktop or portable environment. Servers are typically installed in a rack within a data center; desktops or portables are typically placed on office desks or cubicles. Always look for a large open flat work area that is free of clutter and large enough to deploy the ESD kit with additional space to accommodate the type of system that is being repaired. The workspace should also be free of insulators that can cause an ESD event. On the work area, insulators such as Styrofoam and other plastics should always be moved at least 12 inches or 30 centimeters away from sensitive parts before physically handling any hardware components

● ESD Packaging – All ESD-sensitive devices must be shipped and received in static-safe packaging. Metal, static-shielded bags are preferred. However, you should always return the damaged part using the same ESD bag and packaging that the new part arrived in. The ESD bag should be folded over and taped shut and all the same foam packing material should be used in the original box that the new part arrived in. ESD-sensitive devices should be removed from packaging only at an ESD-protected work surface, and parts should never be placed on top of the ESD bag because only the inside of the bag is shielded. Always place parts in your hand, on the ESD mat, in the system, or inside an anti-static bag.

● Transporting Sensitive Components – When transporting ESD sensitive components such as replacement parts or parts to be returned to Dell, it is critical to place these parts in anti-static bags for safe transport.

ESD protection summary

It is recommended that all field service technicians use the traditional wired ESD grounding wrist strap and protective anti-static mat at all times when servicing Dell products. In addition, it is critical that technicians keep sensitive parts separate from all insulator parts while performing service and that they use anti-static bags for transporting sensitive components.

Transporting sensitive components

When transporting ESD sensitive components such as replacement parts or parts to be returned to Dell, it is critical to place these parts in anti-static bags for safe transport.

After working inside your computer

About this task

NOTE: Leaving stray or loose screws inside your computer may severely damage your computer.

Steps

1. Replace all screws and ensure that no stray screws remain inside your computer.

2. Connect any external devices, peripherals, or cables you removed before working on your computer.

3. Replace any media cards, discs, or any other parts that you removed before working on your computer.

4. Connect your computer and all attached devices to their electrical outlets.

5. Turn on your computer.

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Removing and installing components

NOTE: The images in this document may differ from your computer depending on the configuration you ordered.

Topics:

• Recommended tools

• Screw List

• Major components of your system

• MicroSD-card

• SIM card tray

• Base cover

• Battery cable

• Battery

• Memory module

• M.2 solid-state drive thermal plate

• M.2 solid-state drive conversion bracket

• M.2 solid-state drive

• Hard-disk drive

• WLAN card

• WWAN card

• I/O cable

• Display assembly

• System fan

• Heatsink assembly

• Power adapter port

• Coin-cell battery

• USB cable

• Ethernet port

• I/O board

• Power-button board

• System board

• Speakers

• Touchpad

• WWAN I/O board

• Palmrest assembly

•

Display bezel

• Display panel

• Camera

• Display cable

• Display back-cover

Recommended tools

The procedures in this document may require the following tools:

● Phillips #0 screwdriver

● Plastic scribe

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Screw List

The following table shows the screw list and the image of the screws.

Table 1. Screw list

Component Screw type Quantity Image

Base cover Captive screws 9

3-cell battery M2x3 3

4-cell battery M2x3 5

M.2 Solid-state drive bracket M2x3 1

M.2 Solid-state drive thermal plate M2x3 1

M.2 Solid-state drive conversion bracket M2x3 2

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Table 1. Screw list

Component Screw type Quantity Image

Hard disk-drive module

Hard disk-drive M3x3 4

WLAN card M2x3 1

WWAN card M2x3 1

Display hinges M2.5x6

System Fan M2x3 2

Heatsink assembly

Captive screws

M2.5x4

Captive screws

7 (For systems enabled with discrete graphic card)

4 (For systems enabled with integrated graphic card)

Power adapter port M2x3 1

Ethernet port M2x5 2

I/O board M2x3 2

System board M2x5 2

Touchpad bracket M2.5x2 3

Touchpad module M2x2 4

WWAN I/O board M2x3 2

Hinge bracket M2.5x2.5

M2.5x3

Removing and installing components 13

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Major components of your system

14 Removing and installing components

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1. Base cover

2. Battery

3. Memory module

4. WLAN card

5. Solid-state drive

6. Solid-state drive conversion bracket

7. WWAN card

8. Power adapter port

9. Coin-cell battery

10. Touchpad bracket

11. System board

12. Touchpad

13. Computer chassis

14. Display assembly

15. WWAN I/O board

16. I/O board

17. System fan

18. Heatsink assembly

19. Ethernet port

20. Power-button board

NOTE: Dell provides a list of components and their part numbers for the original system configuration purchased. These

parts are available according to warranty coverages purchased by the customer. Contact your Dell sales representative for

purchase options.

MicroSD-card

Removing the microSD-card

Prerequisites

1. Follow the procedure in before working inside your computer.

About this task

The following image provides a visual representation of the microSD-card removal procedure.

Removing and installing components

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Steps

1. Push the microSD-card to eject it from the slot.

2. Remove the microSD-card from the system.

Installing the MicroSD-card

Prerequisites

If you are replacing a component, remove the existing component before performing the installation procedure.

About this task

The following image provides a visual representation of the MicroSD-card installation procedure.

Steps

Insert the microSD-card into its slot until it clicks into place.

Next steps

1. Follow the procedure in after working inside your computer.

SIM card tray

Removing the SIM card tray

Prerequisites

1. Follow the procedure in before working inside your computer.

2. Remove the microSD-card.

About this task

NOTE: The following steps are applicable only for 4G LTE enabled systems.

The following image provides a visual representation of the SIM card tray removal procedure.

Removing and installing components

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Steps

1. Insert the SIM card removal pin into the release hole to release the SIM card tray.

2. Push the pin to disengage the lock, and eject the SIM card tray.

3. Slide the SIM card tray out of the slot on the computer.

4. Remove the MicroSIM-card from the SIM tray.

5. Slide the SIM card tray back into the slot on the computer.

Installing the SIM card tray

Prerequisites

If you are replacing a component, remove the necessary component before the installation procedure.

About this task

NOTE: The following steps are applicable only for 4G LTE enabled systems.

The following image provides a visual representation of the SIM card tray installation procedure.

Removing and installing components

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Steps

1. Insert the SIM card removal pin into the release hole to remove the SIM card tray.

2. Push the pin to disengage the lock, and eject the SIM card tray.

3. Slide the SIM card tray out of the slot on the computer.

4. Align and place the MicroSIM-card in the dedicated slot on the SIM card tray.

5. Slide the SIM card tray back into the slot on the computer.

Next steps

1. Install the microSD-card.

2. Follow the procedure in after working inside your computer.

Base cover

Removing the base cover

Prerequisites

1. Follow the procedure in before working inside your computer.

2. Remove the microSD-card.

3. Remove the SIM card tray for 4G LTE enabled systems.

4. Enter the service mode.

Removing and installing components

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About this task

The following images indicate the location of the base cover and provide a visual representation of the removal procedure.

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Steps

1. Loosen the nine captive screws that secure the base cover to the palmrest assembly.

2. Using a plastic scribe, pry open the base cover starting from the recesses located in the U-shaped indents near the hinges at the top edge of the base cover.

3. Carefully lift and remove the base cover from the chassis.

NOTE: Be careful of the latches while removing the base cover as the latches may break.

Installing the base cover

Prerequisites

If you are replacing a component, remove the existing component before performing the installation procedure.

About this task

The following images indicate the location of the battery and provide a visual representation of the installation procedure.

20 Removing and installing components

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Steps

1. Align and place the base cover on the palmrest assembly, and snap the base cover latches into place.

2. Tighten the nine captive screws to secure the base cover to the computer chassis.

Next steps

1. Exit the service mode

2. Install the SIM card tray for 4G LTE enabled systems.

3. Install the microSD-card.

4. Follow the procedure in after working inside your computer.

Battery cable

Removing the battery cable

Prerequisites

1. Follow the procedure in before working inside your computer.

2. Remove the microSD-card.

3. Remove the SIM card tray for 4G LTE enabled systems.

4. Remove the base cover.

About this task

The following image indicates the location of the battery cable and provides a visual representation of the removal procedure.

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Steps

1. Disconnect the battery cable from the connector on the system board.

2. Peel the adhesive tapes and unroute the battery cable from routing channel in the battery.

3. Disconnect the battery cable from the connector on the battery.

Installing the battery cable

Prerequisites

If you are replacing a component, remove the existing component before performing the installation procedure.

About this task

The following image indicates the location of the battery cable and provides a visual representation of the installation procedure.

Removing and installing components

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Steps

1. Connect the battery cable to the connector on the battery.

2. Route the battery cable through the routing channel in the battery and adhere the adhesive tapes.

3. Connect the battery cable to the connector on the system board.

Next steps

1. Install the base cover.

2. Install the SIM card tray for 4G LTE enabled systems.

3. Install the microSD-card.

4. Follow the procedure in after working inside your computer.

Battery

Lithium-ion battery precautions

CAUTION:

● Exercise caution when handling Lithium-ion batteries.

● Discharge the battery completely before removing it. Disconnect the AC power adapter from the system and

operate the computer solely on battery power—the battery is fully discharged when the computer no longer

turns on when the power button is pressed.

● Do not crush, drop, mutilate, or penetrate the battery with foreign objects.

● Do not expose the battery to high temperatures, or disassemble battery packs and cells.

● Do not apply pressure to the surface of the battery.

● Do not bend the battery.

● Do not use tools of any kind to pry on or against the battery.

● Ensure any screws during the servicing of this product are not lost or misplaced, to prevent accidental

puncture or damage to the battery and other system components.

Removing and installing components 23

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● If the battery gets stuck inside your computer as a result of swelling, do not try to release it as puncturing,

bending, or crushing a lithium-ion battery can be dangerous. In such an instance, contact Dell technical

support for assistance. See www.dell.com/contactdell.

● Always purchase genuine batteries from www.dell.com or authorized Dell partners and resellers.

Removing the 3-cell battery

Prerequisites

1. Follow the procedure in before working inside your computer.

2. Remove the microSD-card.

3. Remove the SIM card tray for 4G LTE enabled systems.

4. Remove the base cover.

About this task

The following image indicates the location of the battery and provides a visual representation of the removal procedure.

NOTE: If the battery was disconnected from system board for service, there will be a delay during system boot as the

system undergoes RTC battery reset.

Steps

1. Disconnect the battery cable from the connector on the system board.

2. Remove the three (M2X3) screws that secure the battery in place.

3. Lift and remove the battery from the palmrest assembly.

Installing the 3-cell battery

Prerequisites

If you are replacing a component, remove the existing component before performing the installation procedure.

Removing and installing components

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About this task

The following image indicates the location of the battery and provides a visual representation of the installation procedure.

NOTE: If the battery was disconnected from system board for service, there will be a delay during system boot as the

system undergoes RTC battery reset.

Steps

1. Align and place the battery in the slot on the palmrest assembly.

2. Install the three (M2X3) screws to secure the battery in place.

3. Connect the battery cable to the connector on the system board.

Next steps

1. Install the base cover.

2. Install the SIM card tray for 4G LTE enabled systems.

3. Install the microSD-card.

4. Follow the procedure in after working inside your computer.

Removing the 4-cell battery

Prerequisites

1. Follow the procedure in before working inside your computer.

2. Remove the microSD-card.

3. Remove the SIM card tray for 4G LTE enabled systems.

4. Remove the base cover.

About this task

The following image indicates the location of the battery and provides a visual representation of the removal procedure.

If the battery was disconnected from system board for service, there will be a delay during system boot as the

NOTE:

system undergoes RTC battery reset.

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Steps

1. Disconnect the battery cable from the connector on the system board.

2. Remove the four (M2X3) screws that secure the battery in place.

3. Lift and remove the battery from the palmrest assembly.

Installing the 4-cell battery

Prerequisites

If you are replacing a component, remove the existing component before performing the installation procedure.

About this task

The following image indicates the location of the battery and provides a visual representation of the installation procedure.

NOTE:

If the battery was disconnected from system board for service, there will be a delay during system boot as the

system undergoes RTC battery reset.

26 Removing and installing components

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Steps

1. Align and place the battery in the slot on the palmrest assembly.

2. Install the four (M2X3) screws to secure the battery in place.

3. Connect the battery cable to the connector on the system board.

Next steps

1. Install the base cover.

2. Install the SIM card tray for 4G LTE enabled systems.

3. Install the microSD-card.

4. Follow the procedure in after working inside your computer.

Memory module

Removing the memory module

Prerequisites

1. Follow the procedure in before working inside your computer.

2. Remove the microSD-card.

3. Remove the SIM card tray for 4G LTE enabled systems.

4. Enter the service mode.

5. Remove the base cover.

About this task

The following image indicates the location of the memory module and provides a visual representation of the removal procedure.

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Steps

1. Lift the mylar to uncover the memory module.

2. Pry the retention clips securing the memory module slot until the memory module pops-up.

3. Remove the memory module from the memory module slot.

Installing the memory module

Prerequisites

If you are replacing a component, remove the existing component before performing the installation procedure.

About this task

The following image indicates the location of the memory module and provides a visual representation of the installation procedure.

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Steps

1. Lift the mylar to find the memory module slot.

2. Align the notch on the memory module with the tab on the memory-module slot.

3. Slide the memory module firmly into the slot at an angle.

4. Press the memory module down until it clicks into place.

NOTE: If you do not hear the click, remove the memory module and reinstall it.

Next steps

1. Install the base cover.

2. Exit the service mode

3. Install the SIM card tray for 4G LTE enabled systems.

4. Install the microSD-card.

5. Follow the procedure in after working inside your computer.

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M.2 solid-state drive thermal plate

Replacing the M.2 solid-state drive thermal plate

Prerequisites

1. Follow the procedure in before working inside your computer.

2. Remove the microSD-card.

3. Remove the SIM card tray for 4G LTE enabled systems.

4. Enter the service mode.

5. Remove the base cover.

About this task

The following image indicates the location of the M.2 solid-state drive thermal plate and provides a visual representation of the removal procedure.

NOTE: The following is applicable only for systems shipped with discrete graphic card.

Steps

1. Remove the (M2x3) screw that secures the solid-state drive thermal plate to the solid-state drive conversion bracket.

2. Depending on the type of solid-state drive (M.2 2230/ M.2 2280), turn, align and place the solid-state drive thermal plate into the slot.

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3. Install the (M2x3) screw to secure the solid-state drive thermal plate to the solid-state drive conversion bracket.

M.2 solid-state drive conversion bracket

Removing the M.2 solid-state drive conversion bracket

Prerequisites

1. Follow the procedure in before working inside your computer.

2. Remove the microSD-card.

3. Remove the SIM card tray for 4G LTE enabled systems.

4. Enter the service mode.

5. Remove the base cover.

About this task

The following image indicates the location of the M.2 solid-state drive conversion bracket and provides a visual representation of the removal procedure.

NOTE: The following is applicable only for systems shipped with discrete graphic card.

Steps

1. Remove the two (M2x3) screws that secures the solid-state drive conversion bracket to the system board.

2. Lift and remove the solid-state drive conversion bracket from the solid-state drive slot on the system board.

Installing the M.2 solid-state drive conversion bracket

Prerequisites

If you are replacing a component, remove the existing component before performing the installation procedure.

About this task

The following image indicates the location of the M.2 solid-state drive conversion bracket and provides a visual representation of the installation procedure.

NOTE: The following is applicable only for systems shipped with discrete graphic card.

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Steps

1. Align and place the solid-state drive conversion bracket on the system board.

2. Install the two (M2x3) screws to secure the solid-state drive conversion bracket to the system board.

Next steps

1. Install the base cover.

2. Exit the service mode

3. Install the SIM card tray for 4G LTE enabled systems.

4. Install the microSD-card.

5. Follow the procedure in after working inside your computer.

M.2 solid-state drive

Removing the M.2 2230 solid-state drive

Prerequisites

1. Follow the procedure in before working inside your computer.

2. Remove the microSD-card.

3. Remove the SIM card tray for 4G LTE enabled systems.

4. Enter the service mode.

5. Remove the base cover.

About this task

The following image indicates the location of the solid-state drive and provides a visual representation of the removal procedure.

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Steps

1. Remove the (M2x3) screw that secures the solid-state drive to the system board.

2. Slide and remove the solid-state drive from the solid-state drive slot on the system board.

Installing the M.2 2230 solid-state drive

Prerequisites

If you are replacing a component, remove the existing component before performing the installation procedure.

About this task

The following image indicates the location of the solid-state drive and provides a visual representation of the installation procedure.

Steps

1. Align the notch on the solid-state drive with the tab on the solid-state drive slot.

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2. Slide the solid-state drive into the solid-state drive slot on the system board.

3. Replace the (M2x3) screw to secure the solid-state drive to the system board.

Next steps

1. Install the base cover.

2. Exit the service mode

3. Install the SIM card tray for 4G LTE enabled systems.

4. Install the microSD-card.

5. Follow the procedure in after working inside your computer.

Removing the M.2 2280 solid-state drive

Prerequisites

1. Follow the procedure in before working inside your computer.

2. Remove the microSD-card.

3. Remove the SIM card tray for 4G LTE enabled systems.

4. Enter the service mode.

5. Remove the base cover.

About this task

The following image indicates the location of the solid-state drive and provides a visual representation of the removal procedure.

Steps

1. Remove the (M2x3) screw that secures the solid-state drive to the system board.

2. Slide and remove the solid-state drive from the solid-state drive slot on the system board.

Installing the M.2 2280 solid-state drive

Prerequisites

If you are replacing a component, remove the existing component before performing the installation procedure.

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About this task

The following image indicates the location of the solid-state drive and provides a visual representation of the installation procedure.

Steps

1. Align the notch on the solid-state drive with the tab on the solid-state drive slot.

2. Slide the solid-state drive into the solid-state drive slot on the system board.

3. Replace the (M2x3) screw to secure the solid-state drive to the system board.

Next steps

1. Install the base cover.

2. Exit the service mode

3. Install the SIM card tray for 4G LTE enabled systems.

4. Install the microSD-card.

5. Follow the procedure in after working inside your computer.

Hard-disk drive

Removing the hard-disk drive

Prerequisites

1. Follow the procedure in before working inside your computer.

2. Remove the microSD-card.

3. Remove the SIM card tray for 4G LTE enabled systems.

4. Enter the service mode.

5. Remove the base cover.

About this task

The following image indicates the location of the hard-disk drive and provides a visual representation of the removal procedure.

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Steps

1. Lift and disconnect the hard-disk drive cable from the connector on the system board.

2. Loosen the four captive screws that secure the hard-disk drive module to the palmrest assembly.

3. Lift and remove the hard-disk drive module from the slot on the palmrest assembly.

Removing the hard-disk drive bracket

Prerequisites

1. Follow the procedure in before working inside your computer.

2. Remove the microSD-card.

3. Remove the SIM card tray for 4G LTE enabled systems.

4. Enter the service mode.

5. Remove the base cover.

6. Remove the hard-disk drive.

About this task

The following image indicates the location of the hard-disk drive bracket and provides a visual representation of the removal procedure.

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Steps

1. Disconnect the hard-disk drive cable from the connector on the hard-disk drive bracket.

2. Remove the four (M3x3) screws that secure the hard-disk drive to the hard-disk drive bracket.

3. Flip the hard-disk drive bracket, lift the silver foil, and remove the hard-disk drive from the hard-disk drive bracket.

Installing the hard-disk drive bracket

Prerequisites

If you are replacing a component, remove the existing component before performing the installation procedure.

About this task

The following image indicates the location of the hard-disk drive bracket and provides a visual representation of the installation procedure.

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Steps

1. Lift the silver foil, align and place the hard-disk drive in the hard-disk drive bracket.

2. Install the four (M3x3) screws to secure the hard-disk drive to the hard-disk drive bracket.

3. Connect the hard-disk drive cable to the connector on the hard-disk drive bracket.

Next steps

1. Install the hard-disk drive.

2. Install the base cover.

3. Exit the service mode

4. Install the SIM card tray for 4G LTE enabled systems.

5. Install the microSD-card.

6. Follow the procedure in after working inside your computer.

Installing the hard-disk drive

Prerequisites

If you are replacing a component, remove the existing component before performing the installation procedure.

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About this task

The following image indicates the location of the hard-disk drive and provides a visual representation of the installation procedure.

NOTE: Systems that are shipped with 3-cell battery contain a rubber bumper that must be removed manually before

installing the hard-disk drive.

Steps

1. Align and place the hard-disk drive module in the slot on the palmrest assembly.

2. Tighten the four captive screws to secure the hard-disk drive module to the palmrest assembly.

3. Connect the hard-disk drive cable to the connector on the system board.

Next steps

1. Install the base cover.

2. Exit the service mode

3. Install the SIM card tray for 4G LTE enabled systems.

4. Install the microSD-card.

5. Follow the procedure in after working inside your computer.

WLAN card

Removing the WLAN card

Prerequisites

1. Follow the procedure in before working inside your computer.

2. Remove the microSD-card.

3. Remove the SIM card tray for 4G LTE enabled systems.

4. Enter the service mode.

5. Remove the base cover.

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About this task

The following image indicates the location of the WLAN card and provides a visual representation of the removal procedure.

Steps

1. Remove the screw (M2x3) that secures WLAN card bracket to the WLAN card on the system board.

2. Lift and remove the WLAN card bracket from the WLAN card that secures the two antenna cables.

3. Disconnect the antenna cables from the connectors on the WLAN card.

4. Disconnect and remove the WLAN card from the WLAN card slot.

Installing the WLAN card

Prerequisites

If you are replacing a component, remove the existing component before performing the installation procedure.

About this task

The following image indicates the location of the WLAN card and provides a visual representation of the installation procedure.

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Steps

1. Connect the two antenna cables to the connectors on the WLAN card.

NOTE: The antenna cable connectors are fragile and utmost care should be taken while replacing them.

Table 2. Antenna cable guide

Cable color Connector

White cable (Main) White triangle (△) on the WLAN module of the system

board

Black cable (Aux) Solid triangle (▲) on the WLAN module of the system board

2. Align the notch on the WLAN card with the tab on the WLAN card slot.

3. Slide the WLAN card at an angle into the WLAN card slot.

4. Align and place the WLAN card bracket on the WLAN card.

5. Install the screw (M2x3) to secure the WLAN card bracket on the WLAN card to the system board.

Next steps

1. Install the base cover.

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2. Exit the service mode

3. Install the SIM card tray for 4G LTE enabled systems.

4. Install the microSD-card.

5. Follow the procedure in after working inside your computer.

WWAN card

Removing the WWAN card

Prerequisites

1. Follow the procedure in before working inside your computer.

2. Remove the microSD-card.

3. Remove the SIM card tray for 4G LTE enabled systems.

4. Enter the service mode.

5. Remove the base cover.

About this task

The following image indicates the location of the WWAN card and provides a visual representation of the removal procedure.

NOTE: The following steps are applicable only for 4G LTE enabled systems.

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Steps

1. Remove the screw (M2x3) that secures WWAN card bracket to the WWAN card on the system board.

2. Lift and remove the WWAN card bracket from the WWAN card that secures the two antenna cables.

3. Disconnect the antenna cables from the connectors on the WWAN card.

4. Disconnect and remove the WWAN card from the WWAN card slot.

Installing the WWAN card

Prerequisites

If you are replacing a component, remove the existing component before performing the installation procedure.

About this task

The following image indicates the location of the WWAN card and provides a visual representation of the installation procedure.

NOTE: The following steps are applicable only for 4G LTE enabled systems.

Steps

1. Connect the two antenna cables to the connectors on the WWAN card.

NOTE: The antenna cable connectors are fragile and utmost care should be taken while replacing them.

Table 3. Antenna cable guide

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Table 3. Antenna cable guide

Cable color Connector

White cable (Main) White triangle (△) on the WLAN module of the system

board

Black cable (Aux) Solid triangle (▲) on the WLAN module of the system board

2. Align the notch on the WWAN card with the tab on the WWAN card slot.

3. Slide the WWAN card at an angle into the WWAN card slot.

4. Align and place the WLAN card bracket on the WLAN card.

5. Install the screw (M2x3) to secure the WLAN card bracket on the WLAN card to the system board.

Next steps

1. Install the base cover.

2. Exit the service mode

3. Install the SIM card tray for 4G LTE enabled systems.

4. Install the microSD-card.

5. Follow the procedure in after working inside your computer.

I/O cable

Removing the I/O cable

Prerequisites

1. Follow the procedure in before working inside your computer.

2. Remove the SIM card tray for 4G LTE enabled systems.

3. Enter the service mode.

4. Remove the base cover.

About this task

The following image indicates the location of the I/O cable and provides a visual representation of the removal procedure.

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Steps

1. Peel the adhesive tape, open the latch and disconnect the I/O cable from the connector on the system board.

2. Peel the adhesive tape and unroute the I/O cable from the routing guides in the palmrest assembly.

3. Peel the adhesive tape, open the latch and disconnect the I/O cable from the connector on the I/O board.

4. Lift and remove the I/O cable from the palmrest assembly.

Installing the I/O cable

Prerequisites

If you are replacing a component, remove the existing component before performing the installation procedure.

About this task

The following image indicates the location of the I/O cable and provides a visual representation of the installation procedure.

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Steps

1. Route the I/O cable through the routing guides and adhere the adhesive tape to secure the I/O cable in place.

2. Adhere the adhesive tape, connect the I/O cable to the connector on the system board, and close the latch.

3. Adhere the adhesive tape, connect the I/O cable to the connector on the I/O board, and close the latch.

Next steps

1. Install the base cover.

2. Exit the service mode

3. Install the microSD-card.

4. Install the SIM card tray for 4G LTE enabled systems.

5. Follow the procedure in after working inside your computer.

Display assembly

Removing the display assembly

Prerequisites

1. Follow the procedure in before working inside your computer.

2. Remove the microSD-card.

3. Remove the SIM card tray for 4G LTE enabled systems.

4. Enter the service mode.

5. Remove the base cover.

6. Remove the WLAN card.

7. Remove the WWAN card for systems enabled with 4G LTE.

8. Remove the I/O cable.

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About this task

The following images indicate the location of the display assembly and provide a visual representation of the removal procedure.

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Steps

1. Unroute the display cable from the routing guides in the palmrest assembly.

2. Peel the adhesive tape that secures the display cable in place.

3. Open the latch and disconnect the display cable from the connector on the system board.

4. Remove the (M2.5x4) and six (M2.5x6) screws that secure the display hinges to the system.

5. Lift the left and right hinges in upward direction away from the palmrest assembly.

6. Lift the display assembly off the palmrest assembly.

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Installing the display assembly

Prerequisites

If you are replacing a component, remove the existing component before performing the installation procedure.

About this task

The following images indicate the location of the display assembly and provide a visual representation of the installation procedure.

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Steps

1. Align and place the system chassis under the hinges of the display assembly.

2. Press the left and right hinges in downward direction toward the palmrest assembly.

3. Install the (M2.5x4) and six (M2.5x6) screws to secure the display hinges to the palmrest assembly.

4. Connect the display cable to the connector on the system board and close the latch.

5. Route the display cable through the routing guides in the palmrest assembly.

6. Affix the adhesive tape to secures the display cable in place.

Next steps

1. Install the I/O cable.

2. Install the WWAN card for systems enabled with 4G LTE.

3. Install the WLAN card.

4. Install the base cover.

5. Exit the service mode

6. Install the SIM card tray for 4G LTE enabled systems.

7. Install the microSD-card.

8. Follow the procedure in after working inside your computer.

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System fan

Removing the system fan

Prerequisites

1. Follow the procedure in before working inside your computer.

2. Remove the microSD-card.

3. Remove the SIM card tray for systems enabled with 4G LTE.

4. Enter the service mode.

5. Remove the base cover.

About this task

The following image indicates the location of the system fan and provides a visual representation of the removal procedure.

Steps

1. Disconnect the system fan cable from the connector on the system board.

2. Remove the two (M2x3) screws that secure the system fan to the palmrest assembly.

3. Lift and remove the system fan from the palmrest assembly.

Installing the system fan

Prerequisites

If you are replacing a component, remove the existing component before performing the installation procedure.

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About this task

The following image indicates the location of the system fan and provides a visual representation of the installation procedure.

Steps

1. Align and place the system fan into the slot on the palmrest assembly.

2. Install the two (M2x3) screws to secure the system fan to the palmrest assembly.

3. Connect the system fan cable to the connector on the system board.

Next steps

1. Install the base cover.

2. Exit the service mode

3. Install the SIM card tray for systems enabled with 4G LTE.

4. Install the microSD-card.

5. Follow the procedure in after working inside your computer.

Heatsink assembly

Removing the heatsink assembly

Prerequisites

1. Follow the procedure in before working inside your computer.

2. Remove the microSD-card.

3. Remove the SIM card tray for systems enabled with 4G LTE.

4. Enter the service mode.

5. Remove the base cover.

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About this task

The following images indicate the location of the heatsink assembly and provide a visual representation of the removal procedure.

NOTE: The following images are from systems shipped with discrete graphic card. The system board has a different

configuration for integrated graphic cards.

Steps

1. For systems enabled with integrated graphic card, loosen the four captive screws (in reverse order, 4->3->2->1) that secure the heatsink assembly to the system board.

2. For systems enabled with discrete graphic card, loosen the seven captive screws (in reverse order, 7>6>5>4->3->2->1) that secure the heatsink assembly to the system board.

3. Lift and remove the heatsink assembly from the system board.

Installing the heatsink assembly

Prerequisites

If you are replacing a component, remove the existing component before performing the installation procedure.

About this task

The following image indicates the location of the heatsink assembly and provides a visual representation of the installation procedure.

The following images are from systems shipped with discrete graphic card. The system board has a different

NOTE:

configuration for integrated graphic cards.

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Steps

1. Align and place the heatsink assembly into the slot on the system board.

2. For systems enabled with integrated graphic card, tighten the four captive screws to secure the heatsink assembly to the system board.

3. For systems enabled with discrete graphic card, tighten the seven captive screws to secure the heatsink assembly to the system board.

Next steps

1. Install the base cover.

2. Exit the service mode

3. Install the SIM card tray for systems enabled with 4G LTE.

4. Install the microSD-card.

5. Follow the procedure in after working inside your computer.

Power adapter port

Removing the power adapter port

Prerequisites

1. Follow the procedure in before working inside your computer.

2. Remove the microSD-card.

3. Remove the SIM card tray for 4G LTE enabled systems.

4. Enter the service mode.

5. Remove the base cover.

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About this task

The following image indicates the location of the power adapter port and provides a visual representation of the removal procedure.

Steps

1. Remove the (M2.5x4) and two (M2.5x6) screws that secure the display hinges to the system.

2. Disconnect the power adapter port from the connector on the system board.

3. Remove the (M2x3) screw that secures the power adapter port to the palmrest assembly.

4. Lift and remove the power adapter port from the palmrest assembly.

Installing the power adapter port

About this task

The following image indicates the location of the power adapter port and provides a visual representation of the removal procedure.

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Steps

1. Align and place the power adapter port on the palmrest assembly.

2. Install the (M2x3) screw to secure the power adapter port to the palmrest assembly.

3. Connect the power adapter port to the connector on the system board.

4. Install the (M2.5x4) and two (M2.5x6) screws to secure the display hinges to the system.

Next steps

1. Install the base cover.

2. Exit the service mode

3. Install the SIM card tray for 4G LTE enabled systems.

4. Install the microSD-card.

5. Follow the procedure in after working inside your computer.

Coin-cell battery

Removing the coin-cell battery

Prerequisites

1. Follow the procedure in before working inside your computer.

2. Remove the microSD-card.

3. Remove the SIM card tray for 4G LTE enabled systems.

4. Enter the service mode.

5. Remove the base cover.

About this task

The following image indicates the location of the coin-cell battery and provides a visual representation of the removal procedure.

The following image is from computers with discrete graphic card. For computers with integrated graphic card, the

NOTE:

system board has a different configuration.

56 Removing and installing components

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Steps

1. Disconnect the coin-cell battery cable from the connector on the I/O board.

2. Lift and remove the coin-cell battery from the palmrest assembly.

Installing the coin-cell battery

Prerequisites

If you are replacing a component, remove the existing component before performing the installation procedure.

About this task

The following image indicates the location of the coin-cell battery and provides a visual representation of the installation procedure.

NOTE:

The following image is from computers with discrete graphic card. For computers with integrated graphic card, the

system board has a different configuration.

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Steps

1. Align and place the coin-cell battery on the palmrest assembly.

2. Connect the coin-cell battery cable to the connector on the I/O board.

Next steps

1. Install the base cover.

2. Exit the service mode

3. Install the SIM card tray for 4G LTE enabled systems.

4. Install the microSD-card.

5. Follow the procedure in after working inside your computer.

USB cable

Removing the USB cable

Prerequisites

1. Follow the procedure in before working inside your computer.

2. Remove the microSD-card.

3. Remove the SIM card tray for 4G LTE enabled systems.

4. Remove the base cover.

5. Remove the battery.

6. Remove the hard-disk drive.

About this task

The following image indicates the location of the USB cable and provides a visual representation of the removal procedure.

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Steps

1. Open the latch and disconnect the USB cable from the connector on the system board.

2. Carefully peel the USB cable from the palmrest assembly.

3. Open the latch and disconnect the USB cable from the connector on the I/O board.

4. Lift and remove the USB cable from the palmrest assembly.

Installing the USB cable

Prerequisites

If you are replacing a component, remove the existing component before performing the installation procedure.

About this task

The following image indicates the location of the USB cable and provides a visual representation of the installation procedure.

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Steps

1. Connect the USB cable to the connector on the system board and close the latch.

2. Align and adhere the USB cable on the palmrest assembly.

3. Connect the USB cable to the connector on the I/O board and close the latch.

Next steps

1. Install the hard-disk drive.

2. Install the battery.

3. Install the base cover.

4. Install the SIM card tray for 4G LTE enabled systems.

5. Install the microSD-card.

6. Follow the procedure in after working inside your computer.

Ethernet port

Removing the ethernet port

Prerequisites

1. Follow the procedure in before working inside your computer.

2. Remove the microSD-card.

3. Remove the SIM card tray for 4G LTE enabled systems.

4. Enter the service mode.

5. Remove the base cover.

About this task

The following image indicates the location of the ethernet port and provides a visual representation of the removal procedure.

Steps

1. Remove the four (M2.5x6) screws to secure the hinge bracket on the palmrest assembly.

2. Lift the hinge in upward direction away from the palmrest assembly.

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3. Remove the two (M2x5) screws that secure the ethernet on the I/O board.

4. Lift and remove the ethernet from the I/O board.

Installing the ethernet port

Prerequisites

If you are replacing a component, remove the existing component before performing the installation procedure.

About this task

The following image indicates the location of the ethernet port and provides a visual representation of the installation procedure.

Steps

1. Align and place the ethernet on the I/O board.

2. Install the two (M2x5) screws to secure the ethernet on the I/O board.

3. Press the hinge in downward direction toward the palmrest assembly.

4. Install the four (M2.5x6) screws to secure the hinge bracket on the palmrest assembly.

Next steps

1. Install the base cover.

2. Exit the service mode

3. Install the SIM card tray for 4G LTE enabled systems.

4. Install the microSD-card.

5. Follow the procedure in after working inside your computer.

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I/O board

Removing the I/O board

Prerequisites

1. Follow the procedure in before working inside your computer.

2. Remove the microSD-card.

3. Remove the SIM card tray for 4G LTE enabled systems.

4. Enter the service mode.

5. Remove the base cover.

6. Remove the ethernet port.

About this task

NOTE: The following image is from computers with discrete graphic card. For computers with integrated graphic card, the

system board has a different configuration.

The following image indicates the location of the I/O board and provides a visual representation of the removal procedure.

Steps

1. For systems shipped with power-button board, peel the adhesive, open the latch and disconnect the power-button board cable from the connector on the I/O board.

2. Open the latch and disconnect the I/O cable from the connector on the system board.

3. Disconnect the USB cable and coin-cell cable from the connectors on the system board.

4. Remove the two (M2x3) screws that secure the I/O board on the palmrest assembly.

5. Lift and remove the I/O board from the palmrest assembly.

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Installing the I/O board

Prerequisites

If you are replacing a component, remove the existing component before performing the installation procedure.

About this task

NOTE: The following image is from computers with discrete graphic card. For computers with integrated graphic card, the

system board has a different configuration.

The following image indicates the location of the I/O board and provides a visual representation of the installation procedure.

Steps

1. Align and place the I/O board into its slot on the palmrest assembly.

2. Install the two (M2x3) screws that secure the I/O board on the palmrest assembly.

3. Connect the USB cable and coin-cell cable to the connectors on the system board.

4. Connect the I/O cable to the connector on the system board and close the latch.

5. For systems shipped with power-button board, connect the power-button board cable to the connector on the I/O board, close the latch and affix the adhesive tape.

Next steps

1. Install the ethernet port.

2. Install the base cover.

3. Exit the service mode

4. Install the SIM card tray for 4G LTE enabled systems.

5. Install the microSD-card.

6. Follow the procedure in after working inside your computer.

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Power-button board

Removing the power-button board

Prerequisites

1. Follow the procedure in before working inside your computer.

2. Remove the microSD-card.

3. Remove the SIM card tray for 4G LTE enabled systems.

4. Enter the service mode.

5. Remove the base cover.

6. Remove the I/O board.

7. Remove the ethernet port.

About this task

The following image indicates the location of the power-button board and provides a visual representation of the removal procedure.

NOTE: The following images are from systems shipped with discrete graphic card. The system board has a different

configuration for integrated graphic cards.

Steps

1. Peel the power-button cable with adhesive backing from the palmrest assembly.

2. Lift the power-button board off the palmrest assembly.

Installing the power-button board

About this task

The following image indicates the location of the power-button board and provides a visual representation of the removal procedure.

The following images are from systems shipped with discrete graphic card. The system board has a different

NOTE:

configuration for integrated graphic cards.

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Steps

1. Affix the power-button cable with adhesive backing.

2. Align and place the power-button board into the slot on the palmrest assembly.

Next steps

1. Install the ethernet port.

2. Install the I/O board.

3. Install the base cover.

4. Exit the service mode

5. Install the SIM card tray for 4G LTE enabled systems.

6. Install the microSD-card.

7. Follow the procedure in after working inside your computer.

System board

Removing the system board

Prerequisites

1. Follow the procedure in before working inside your computer.

2. Remove the microSD-card.

3. Remove the SIM card tray for 4G LTE enabled systems.

4. Remove the base cover.

5. Remove the battery.

6. Remove the memory module.

7. Remove the M.2 SSD.

8. Remove the hard-disk drive for systems shipped with hard-disk drive.

9. Remove the WLAN card.

10. Remove the heatsink assembly.

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About this task

Figure 1. System board connectors

System fan cable 2. Display cable

3. Power adapter cable 4. Memory module connector

5. Keyboard backlit LED cable 6. Keyboard cable

7. Touchpad cable 8. Battery cable

9. WLAN card connector 10. Hard-disk drive cable

11. USB cable 12. Speaker cable

13. I/O cable 14. M.2 SSD connector

The following images indicate the location of the system board and provide a visual representation of the removal procedure.

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Steps

1. Remove the two (M2.5x6) and the (M2.5x4) screws that secure the hinge to the palmrest assembly.

2. Lift the hinge in upward direction away from the palmrest assembly.

3. For 4G LTE enabled systems, peel the WWAN I/O board cable from the palmrest assembly.

4. Disconnect the speaker cable, power adapter port cable, hard-disk drive cable, and system fan cable from the connector on the system board.

5. Open the latch and disconnect the touchpad cable, keyboard cable, and USB cable from the connector on the system board.

6. Peel the adhesive, open the latch, and disconnect the display cable and I/O cable from the connector on the system board.

7. Remove the two (M2x5) screws that secure the type-c bracket in place.

8. Lift and remove the type-c bracket from the system board.

9. Remove the two (M2x2) screws that secure the system board in place.

10. Lift and remove the system board from the palmrest assembly.

Installing the system board

Prerequisites

If you are replacing a component, remove the existing component before performing the installation procedure.

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About this task

Figure 2. System board connectors

System fan cable 2. Display cable

3. Power adapter cable 4. Memory module connector

5. Keyboard backlit LED cable 6. Keyboard cable

7. Touchpad cable 8. Battery cable

9. WLAN card connector 10. Hard-disk drive cable

11. USB cable 12. Speaker cable

13. I/O cable 14. M.2 SSD connector

The following images indicate the location of the system board and provide a visual representation of the installation procedure.

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Steps

1. Align and place the system board into the slot on the palmrest assembly.

2. Install the two (M2x2) screws to secure the system board in place.

3. Align and place the type-c bracket on the system board.

4. Install the two (M2x5) screws to secure the type-c bracket in place.

5. Connect the display cable and I/O cable to the connector on the system board, close the latches and affix the adhesive tapes.

6. Connect the touchpad cable, keyboard cable, and USB cable to the connector on the system board and close the latches.

7. Connect the speaker cable, power adapter port cable, hard-disk drive cable, and system fan cable to the connector on the system board.

8. For 4G LTE enabled systems, affix the WWAN I/O board cable on the palmrest assembly.

9. Press the hinge in downward direction toward the palmrest assembly.

10. Install the two (M2.5x6) and the (M2.5x4) screws to secure the hinge to the palmrest assembly.

Next steps

1. Install the heatsink assembly.

2. Install the WLAN card.

3. Install the hard-disk drive for systems shipped with hard-disk drive.

4. Install the M.2 SSD.

5. Install the memory module.

6. Install the battery.

7. Install the base cover.

8. Install the SIM card tray for 4G LTE enabled systems.

9. Install the microSD-card.

10. Follow the procedure in after working inside your computer.

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Speakers

Removing the speaker

Prerequisites

1. Follow the procedure in before working inside your computer.

2. Remove the microSD-card.

3. Remove the SIM card tray for 4G LTE enabled systems.

4. Remove the base cover.

5. Remove the battery.

About this task

The following image indicates the location of the speakers and provides a visual representation of the removal procedure.

Steps

1. Disconnect the speaker cable from the connector on the system board.

2. Unroute the speaker cable from the routing guides in the palmrest assembly.

3. Peel the adhesive tapes, lift and remove the speakers off the palmrest assembly.

Installing the speaker

Prerequisites

If you are replacing a component, remove the existing component before performing the installation procedure.

About this task

The following image indicates the location of the speakers and provides a visual representation of the installation procedure.

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Steps

1. Align and place the speakers into the slot on the palmrest assembly.

2. Route the speaker cable through the routing guides in the palmrest assembly.

3. Connect the speaker cable to the connector on the system board.

4. Affix the adhesive tapes to secure the speakers in place.

Next steps

1. Install the battery.

2. Install the base cover.

3. Install the SIM card tray for 4G LTE enabled systems.

4. Install the microSD-card.

5. Follow the procedure in after working inside your computer.

Touchpad

Removing the touchpad

Prerequisites

1. Follow the procedure in before working inside your computer.

2. Remove the microSD-card.

3. Remove the SIM card tray for 4G LTE enabled systems.

4. Remove the base cover.

5. Remove the battery.

6. Remove the speakers.

About this task

The following image indicates the location of the touchpad and provides a visual representation of the removal procedure.

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Steps

1. Open the latch and disconnect the touchpad cable from the connector on the system board.

2. Peel the adhesive tapes that secure the touchpad module in place.

3. Remove the three (M2.5x2) screws that secure the touchpad bracket to the touchpad module.

4. Lift and remove the touchpad bracket from the touchpad module.

5. Remove the four (M2x2) screws that secure the touchpad module to the palmrest assembly.

6. Lift and remove the touchpad module from the palmrest assembly.

Installing the touchpad

Prerequisites

If you are replacing a component, remove the existing component before performing the installation procedure.

About this task

The following image indicates the location of the touchpad and provides a visual representation of the installation procedure.

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Steps

1. Align and place the touchpad module into the slot on the palmrest assembly.

2. Install the four (M2x2) screws to secure the touchpad module to the palmrest assembly.

3. Align and place the touchpad bracket on the touchpad module.

4. Install the three (M2.5x2) screws to secure the touchpad bracket to the touchpad module.

5. Affix the adhesive tapes to secure the touchpad module in place.

6. Connect the touchpad cable to the connector on the system board and close the latch.

Next steps

1. Install the speakers.

2. Install the battery.

3. Install the base cover.

4. Install the SIM card tray for 4G LTE enabled systems.

5. Install the microSD-card.

6. Follow the procedure in after working inside your computer.

WWAN I/O board

Removing the WWAN I/O board

Prerequisites

1. Follow the procedure in before working inside your computer.

2. Remove the microSD card.

3. Remove the SIM card tray for 4G LTE enabled systems.

4. Remove the base cover.

5. Remove the battery cable.

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About this task

The following image indicates the location of the WWAN I/O board and provides a visual representation of the removal procedure.

NOTE: The following steps are applicable only for 4G LTE enabled systems.

Steps

1. Remove the two (M2x3) screws that secure the WWAN I/O board to the palmrest assembly.

2. Open the latch and disconnect the WWAN cable from the connector on the WWAN I/O board.

3. Lift and remove the WWAN I/O board from the palmrest assembly.

Installing the WWAN I/O board

Prerequisites

If you are replacing a component, remove the existing component before performing the installation procedure.

About this task

The following image indicates the location of the WWAN I/O board and provides a visual representation of the installation procedure.

NOTE: The following steps are applicable only for 4G LTE enabled systems.

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Steps

1. Connect the WWAN cable to the connector on the WWAN I/O board and close the latch.

2. Align and place the WWAN I/O board into its slot on the palmrest assembly.

3. Install the two (M2x3) screws to secure the WWAN I/O board to the palmrest assembly.

Next steps

1. Install the battery cable

2. Install the base cover.

3. Install the SIM card tray for 4G LTE enabled systems.

4. Install the microSD card.

5. Follow the procedure in After working on your computer.

Palmrest assembly

Removing the palmrest assembly

Prerequisites

1. Follow the procedure in before working inside your computer.

2. Remove the microSD-card.

3. Remove the SIM card tray for 4G LTE enabled systems.

4. Remove the base cover.

5. Remove the battery.

6. Remove the memory module.

7. Remove the M.2 SSD.

8. Remove the M.2 SSD thermal plate.

9. Remove the M.2 SSD conversion bracket.

10. Remove the hard-disk drive.

11. Remove the WLAN card.

12. Remove the WWAN card for systems enabled with 4G LTE.

13. Remove the I/O board cable.

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14. Remove the display assembly.

15. Remove the system fan.

16. Remove the heatsink assembly.

17. Remove the power adapter port.

18. Remove the I/O board.

19. Remove the coin-cell battery.

20. Remove the USB cable.

21. Remove the WWAN I/O board for systems enabled with 4G LTE.

22. Remove the system board.

NOTE: The system board can be removed along with the heat sink.

About this task

The following images indicate the location of the palmrest assembly.

Steps

After performing the preceding steps, you are left with the palmrest assembly.

Installing the palmrest assembly

Prerequisites

If you are replacing a component, remove the existing component before performing the installation procedure.

About this task

The following image indicates the palmrest assembly.

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Steps

After performing the succeeding steps, you are left with the palmrest assembly.

Next steps

1. Install the system board.

2. Install the WWAN I/O board for systems enabled with 4G LTE.

3. Install the USB cable.

4. Install the coin-cell battery.

5. Install the I/O board.

6. Install the power adapter port.

7. Install the heatsink assembly.

8. Install the system fan.

9. Install the display assembly.

10. Install the I/O board cable.

11. Install the WWAN card for systems enabled with 4G LTE.

12. Install the WLAN card.

13. Install the hard-disk drive.

14. Install the M.2 SSD conversion bracket.

15. Install the M.2 SSD thermal plate.

16. Install the M.2 SSD.

17. Install the memory module.

18. Install the battery.

19. Install the base cover.

20. Install the SIM card tray for 4G LTE enabled systems.

21. Install the microSD-card.

22. Follow the procedure in after working inside your computer.

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Display bezel

Removing the display bezel

Prerequisites

1. Follow the procedure in before working inside your computer.

2. Remove the microSD-card.

3. Remove the SIM card tray for 4G LTE enabled systems.

4. Enter the service mode.

5. Remove the base cover.

6. Remove the WLAN card.

7. Remove the WWAN card for 4G LTE enabled systems.

8. Remove the I/O board cable.

9. Remove the display assembly.

About this task

The following images indicate the location of the display bezel and provide a visual representation of the removal procedure.

Steps

1. Use a plastic scribe to carefully pry open the top, left, and right sides of the display bezel.

CAUTION:

using your hand or a plastic scribe. Using a screw driver or any sharp object may damage the display cover.

2. Lift and remove the display bezel from the display assembly.

Removing and installing components

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Installing the display bezel

Prerequisites

If you are replacing a component, remove the existing component before performing the installation procedure.

About this task

The following image indicates the location of the display bezel and provides a visual representation of the installation procedure.

Steps

Align the display bezel with the display assembly. Gently snap the display bezel into place.

Next steps

1. Install the display assembly.

2. Install the I/O board cable.

3. Install the WWAN card for 4G LTE enabled systems.

4. Install the WLAN card.

5. Install the base cover.

6. Exit the service mode

7. Install the SIM card tray for 4G LTE enabled systems.

8. Install the microSD-card.

9. Follow the procedure in after working inside your computer.

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Display panel

Removing the display panel

Prerequisites

1. Follow the procedure in before working inside your computer.

2. Remove the microSD-card.

3. Remove the SIM card tray for 4G LTE enabled systems.

4. Enter the service mode.

5. Remove the base cover.

6. Remove the WLAN card.

7. Remove the WWAN card for 4G LTE enabled systems.

8. Remove the I/O board cable.

9. Remove the display assembly.

10. Remove the display bezel.

About this task

NOTE: The display panel is pre-assembled with the display brackets as a single service part. Do not pull and release the

Stretch Release (SR) Tapes from the display panel and separate the brackets from the display panel.

The following images indicate the location of the display panel and provide a visual representation of the removal procedure.

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Steps

1. Remove the six (M2.5x2.5) and two (M2.5x3) screws that secure the left and right hinge brackets in place.

2. Gently flip over the display panel.

3. Peel the adhesive tape, open the latch and disconnect the display cable from the connector on the display panel.

4. Lift and remove the display panel from the display assembly.

Installing the display panel

Prerequisites

If you are replacing a component, remove the existing component before performing the installation procedure.

About this task

NOTE:

The display panel is pre-assembled with the display brackets as a single service part. Do not pull and release the

Stretch Release (SR) Tapes from the display panel and separate the brackets from the display panel.

The following images indicate the location of the display panel and provide a visual representation of the installation procedure.

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Steps

1. Align and place the display panel on the display assembly.

2. Connect the display cable to the connector on the display panel, close the latch and affix the adhesive tape.

3. Install the six (M2.5x2.5) and two (M2.5x3) screws to secure the left and right hinge brackets in place.

4. Gently flip over the display panel.

Next steps

1. Install the display bezel.

2. Install the display assembly.

3. Install the I/O board cable.

4. Install the WWAN card for 4G LTE enabled systems..

5. Install the WLAN card.

6. Install the base cover.

7. Exit the service mode

8. Install the SIM card tray for 4G LTE enabled systems.

9. Install the microSD-card.

10. Follow the procedure in after working inside your computer.

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Camera

Removing the camera

Prerequisites

1. Follow the procedure in before working inside your computer.

2. Remove the microSD-card.

3. Remove the SIM card tray for 4G LTE enabled systems.

4. Enter the service mode.

5. Remove the base cover.

6. Remove the WLAN card.

7. Remove the WWAN card for 4G LTE enabled systems.

8. Remove the I/O board cable.

9. Remove the display assembly.

10. Remove the display bezel.

11. Remove the display panel.

About this task

The following image indicates the location of the camera and provides a visual representation of the removal procedure.

Steps

1. Peel the adhesive that secures the camera cable to the connector on the camera module.

2. Disconnect the camera cable from the connector on the camera module.

3. Peel the camera cable from the display back-cover.

4. Carefully pry loose and remove the camera module from the display back-cover.

Installing the camera

Prerequisites

If you are replacing a component, remove the existing component before performing the installation procedure.

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About this task

The following image indicates the location of the camera and provides a visual representation of the installation procedure.

Steps

1. Align and place the camera module into the slot on the display back-cover.

2. Connect the camera cable to the connector on the camera module.

3. Affix the adhesive tape to secure the camera cable to the connector on the camera module.

4. Align and affix the camera cable on the display back-cover.

Next steps

1. Install the display panel.

2. Install the display bezel.

3. Install the display assembly.

4. Install the I/O board cable.

5. Install the WWAN card for 4G LTE enabled systems.

6. Install the WLAN card.

7. Install the base cover.

8. Exit the service mode

9. Install the SIM card tray for 4G LTE enabled systems.

10. Install the microSD-card.

11. Follow the procedure in after working inside your computer.

Display cable

Removing the display cable

Prerequisites

1. Follow the procedure in before working inside your computer.

2. Remove the microSD-card.

3. Remove the SIM card tray for 4G LTE enabled systems.

4. Enter the service mode.

5. Remove the base cover.

6. Remove the WLAN card.

7. Remove the WWAN card for 4G LTE enabled systems.

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8. Remove the I/O board cable.

9. Remove the display assembly.

10. Remove the display bezel.

11. Remove the display panel.

About this task

The following image indicates the location of the display cable and provides a visual representation of the removal procedure.

Steps

1. Disconnect the display cable from the connector on the system board.

2. Disconnect the display cable from the connector on the display panel.

3. Disconnect the display cable from the connector on the camera module.

Installing the display cable

Prerequisites

If you are replacing a component, remove the existing component before performing the installation procedure.

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About this task

The following image indicates the location of the display cable and provides a visual representation of the installation procedure.

Steps

1. Connect the display cable from the connector on the camera module.

2. Connect the display cable from the connector on the display panel.

3. Connect the display cable from the connector on the system board.

Next steps

1. Install the display panel.

2. Install the display bezel.

3. Install the display assembly.

4. Install the I/O board cable.

5. Install the WWAN card for 4G LTE enabled systems. .

6. Install the WLAN card.

7. Install the base cover.

8. Exit the service mode

9. Install the SIM card tray for 4G LTE enabled systems.

10. Install the microSD-card.

11. Follow the procedure in after working inside your computer.

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Display back-cover

Removing the display back-cover

Prerequisites

1. Follow the procedure in before working inside your computer.

2. Remove the microSD-card.

3. Remove the SIM card tray for 4G LTE enabled systems.

4. Enter the service mode.

5. Remove the base cover.

6. Remove the WLAN card.

7. Remove the WWAN card for 4G LTE enabled systems.

8. Remove the I/O board cable.

9. Remove the display assembly.

10. Remove the display bezel.

11. Remove the display panel.

12. Remove the camera.

13. Remove the display cable.

About this task

The following images indicate the location of the display back-cover and provide a visual representation of the removal procedure.

Steps

After performing the preceding steps, you are left with the base cover assembly.

Installing the display back-cover

Prerequisites

If you are replacing a component, remove the existing component before performing the installation procedure.

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About this task

The following image indicates the location of the display back-cover and provides a visual representation of the installation procedure.

Steps

After performing the succeeding steps, you are left with the base cover assembly.

Next steps

1. Install the display cable.

2. Install the camera.

3. Install the display panel.

4. Install the display bezel.

5. Install the display assembly.

6. Install the I/O board cable.

7. Install the WWAN card for 4G LTE enabled systems. .

8. Install the WLAN card.

9. Install the base cover.

10. Exit the service mode

11. Install the SIM card tray for 4G LTE enabled systems.

12. Install the microSD-card.

13. Follow the procedure in after working inside your computer.

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Drivers and downloads

When troubleshooting, downloading, or installing drivers, it is recommended that you read the Dell knowledge base article,

Drivers and Downloads FAQs .

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System setup

CAUTION: Unless you are an expert computer user, do not change the settings in the BIOS Setup program.

Certain changes can make your computer work incorrectly.

NOTE: Before you change BIOS Setup program, it is recommended that you write down the BIOS Setup program screen

information for future reference.

Use the BIOS Setup program for the following purposes:

● Get information about the hardware installed in your computer, such as the amount of RAM and the size of the hard drive.

● Change the system configuration information.

● Set or change a user-selectable option, such as the user password, type of hard drive installed, and enabling or disabling

base devices.

Topics:

• Boot menu

• Boot Sequence

• Navigation keys

• System setup options

• Updating the BIOS in Windows

• System and setup password

Boot menu

To initiate a one-time boot menu with a list of the valid boot devices for the system, press <F12> when the Dell logo is displayed. Diagnostics and BIOS Setup options are also in this menu. The devices that are listed on the boot menu depend on the bootable devices in the system. This menu is useful when you are attempting to boot to a particular device or to bring up the diagnostics for the system. Using the boot menu, do not change the boot order that is stored in the BIOS.

The options are:

● Legacy External Device Boot ○ Onboard NIC

● UEFI Boot: ○ UEFI: TOSHIBA MQ01ACF050

● Other Options: ○ BIOS Setup ○ Device Configuration ○ BIOS Flash Update ○ Diagnostics ○ Intel (R) Management Engine BIOS Extension (MEBx) ○ Change Boot Mode Settings

Boot Sequence

Boot sequence enables you to bypass the System Setup–defined boot device order and boot directly to a specific device (for example: optical drive or hard drive). During the Power-on Self-Test (POST), when the Dell logo appears, you can:

● Access System Setup by pressing F2 key

● Bring up the one-time boot menu by pressing F12 key.

The one-time boot menu displays the devices that you can boot from including the diagnostic option. The boot menu options are:

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● Removable Drive (if available)

● STXXXX Drive

NOTE: XXXX denotes the SATA drive number.

● Optical Drive (if available)

● SATA Hard Drive (if available)

● Diagnostics

NOTE: Choosing Diagnostics, displays the SupportAssist screen.

The boot sequence screen also displays the option to access the System Setup screen.

Navigation keys

NOTE: For most of the System Setup options, changes that you make are recorded but do not take effect until you restart

the system.

Keys Navigation

Up arrow Moves to the previous field.

Down arrow Moves to the next field.

Enter Selects a value in the selected field (if applicable) or follow the link in the field.

Spacebar Expands or collapses a drop-down list, if applicable.

Tab Moves to the next focus area.

Esc Moves to the previous page until you view the main screen. Pressing Esc in the main screen displays a

message that prompts you to save any unsaved changes and restarts the system.

System setup options

NOTE: Depending on your system and its installed devices, the items that are listed in this section may or may not appear.

Table 4. System setup options—System information menu

Overview

Latitude 3520

BIOS Version Displays the BIOS version number.

Service Tag Displays the Service Tag of the system.

Asset Tag Displays the Asset Tag of the system.

Manufacture Date Displays the manufacture date of the system.

Ownership Date Displays the ownership date of the system.

Express Service Code Displays the express service code of the system.

Ownership Tag Displays the Ownership Tag of the system.

Signed Firmware Update Displays whether the Signed Firmware Update is enabled on your system.

Battery Information

Primary Displays that battery is primary.

Battery Level Displays the battery level of the system.

Battery State Displays the battery state of the system.

Health Displays the battery health of the system.

AC Adapter Displays whether the AC adapter is connected or not.

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Table 4. System setup options—System information menu

Overview

Processor Information

Processor Type Displays the processor type.

Maximum Clock Speed Displays the maximum processor clock speed.

Minimum Clock Speed Displays the minimum processor clock speed.

Current Clock Speed Displays the current processor clock speed.

Core Count Displays the number of cores on the processor.

Processor ID Displays the processor identification code.

Processor L2 Cache Displays the processor L2 Cache size.

Processor L3 Cache Displays the processor L3 Cache size.

Microcode Version Displays the microcode version.

Intel Hyper-Threading Capable Displays whether the processor is Hyper-Threading (HT) capable.

64-Bit Technology Displays whether 64-bit technology is used.

Memory Information

Memory Installed Displays the total system memory installed.

Memory Available Displays the total system memory available.

Memory Speed Displays the memory speed.

Memory Channel Mode Displays single or dual channel mode.

Memory Technology Displays the technology that is used for the memory.

DIMM SLOT 1 Displays DIMM slot information.

DIMM SLOT 2 Displays DIMM slot information.

Devices Information

Panel Type Displays the Panel Type of the system.

Video Controller Displays the video controller type of the system.

Video Memory Displays the video memory information of the system.

Wi-Fi Device Displays the wireless device information of the system.

Native Resolution Displays the native resolution of the system.

Video BIOS Version Displays the video BIOS version of the system.

Audio Controller Displays the audio controller information of the system.

Bluetooth Device Displays the Bluetooth device information of the system.

LOM MAC Address Displays the LAN On Motherboard (LOM) MAC address of the system.

Pass Through MAC Address Displays the pass through MAC address of the system.

Cellular Device Displays the M.2 PCIe SSD information of the system.

dGPU Video Controller (For systems with discrete video card only)

Displays the video controller information.

Table 5. System setup options—Boot Configuration menu

Boot Configuration

Boot Sequence

Boot mode Displays the boot mode.

NOTE: Legacy Boot mode is not supported on this platform.

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Table 5. System setup options—Boot Configuration menu

Boot Configuration

Boot Sequence Displays the boot sequence.

Secure Digital (SD) Card Boot Enable or disable the SD card read-only boot.

By default, the Secure Digital (SD) Card Boot option is not enabled.

Secure Boot

Enable Secure Boot Enable or disable the secure boot feature.

By default, the option is disabled.

Secure Boot Mode Allows you to modify the secure boot mode options.

By default, the Deployed Mode is enabled.

By default, the Audit Mode is disabled.

Expert Key Management

Enable Custom Mode Enable or disable custom mode.

By default, the custom mode option is not enabled.

Custom Mode Key Management Allows you to select the custom values for expert key management.

Table 6. System setup options—Integrated Devices menu

Integrated Devices

Date/Time Displays the current date in MM/DD/YYYY format and current time in

HH:MM:SS AM/PM format.

Camera Enables or disable the camera.

By default, the Enable Camera option is selected

Audio

Enable Audio Enable or disable the integrated audio controller.

By default, the Enable Audio option is enabled.

By default, the Enable Microphone option is enabled.

By default, the Enable Internal Speaker option is enabled.

USB Configuration

Disable USB4 PCIE Tunneling Disable the USB4 PCIE Tunneling option. By default, this option is disabled.

Video/Power only on Type-C Ports Enable or disable the Type-C port functionality to video or only power. By

Miscellaneous Devices

Enable Fingerprint Reader Device (For systems with discrete video card only)

● Enable or disable booting from USB mass storage devices that are connected to external USB ports.

By default, the Enable External USB Ports option is enabled.

● Enable or disable booting from USB mass storage devices such as external hard drive, optical drive, and USB drive.

By default, the Enable USB Boot Support option is enabled.

default, the Video/Power only on Type-C Ports option is disabled.

Enables Fingerprint Reader Device. This option is enabled by default.

Table 7. System setup options—Storage menu

Storage

SATA/NVMe Operation

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Table 7. System setup options—Storage menu

Storage

SATA/NVMe Operation Set the operating mode of the integrated storage device controller.

By default, the RAID On option is enabled.

Storage interface

Port Enablement This page allows you to enable the onboard drives.

By default, the SATA-1 option is enabled.

By default, the M.2 PCIe SSD-1 option is enabled.

SMART Reporting

Enable SMART Reporting Enable or disable Self-Monitoring, Analysis, and Reporting Technology

(SMART) during system startup.

By default, the Enable SMART Reporting option is disabled.

Drive Information

SATA-1

Type Displays the SATA type information of the system.

Device Displays the SATA device information of the system.

M.2 PCIe SSD-1

Type Displays the M.2 PCIe SSD type information of the system.

Device Displays the M.2 PCIe SSD device information of the system.

Enable Hard Drive Free Fall Protection

Enable Hard Drive Free Fall Protection Allows you to enable Hard Drive Free Fall Protection feature.

By default, the Enable Hard Drive Free Fall Protection option is selected.

Enable MediaCard Enable or disable the media card in read-only state.

By default, the Secure Digital (SD) Card option is enabled.

Table 8. System setup options—Display menu

Display

Display Brightness

Brightness on battery power Enable to set screen brightness when the system is running on battery power.

Brightness on AC power Enable to set screen brightness when the system is running on AC power.

Touchscreen(For systems with integrated video card only)

EcoPower

Enable EcoPower Enable or disabled EcoPower feature. This option is enabled by default.

Full Screen Logo Enable or disable full screen logo.

Enable or disable touchscreen for the operating system. Touchscreen will always work in the BIOS setup irrespective of this setting. This option is enabled by default.

By default, the option is disabled.

Table 9. System setup options—Connection menu

Connection

Network Controller Configuration

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Table 9. System setup options—Connection menu

Connection

Integrated NIC If enabled, UEFI network protocols are installed and available, allowing pre-OS

and early OS networking features to use any enabled NICs. The option Enable

with PXE is enabled by default.

Wireless Device Enable

WWAN/GPS (For systems with discrete

video card only)

WLAN Enable or disable the internal WLAN device.

Bluetooth Enable or disable the internal Bluetooth device.

Enable UEFI Network Stack Enable or disable UEFI Network Stack.

Wireless Radio Control

Control WLAN radio Sense the connection of the system to a wired network and subsequently

Enable or disable the internal WWAN/GPS device. By default, the option enabled. The WWAN Bus Mode option is used to set the interface type of the WWAN card. By default, the option Bus Mode PCIe is enabled.

By default, the option enabled.

By default, the Enable UEFI Network Stack option is enabled.

disable the selected wireless radios (WLAN).

By default, the option is disabled.

Control WWAN radio Sense the connection of the system to a wired network and subsequently

disable the selected wireless radios (WWAN).

By default, the option is disabled.

HTTPs Boot Feature(For systems with discrete video card only)

HTTPs Boot Enable or disable the HTTPs Boot feature.

By default, the HTTPs Boot option is enabled.

Table 10. System setup options—Power menu (continued)

Power

Battery configuration Enables the system to run on battery during peak power usage hours. Use the

table Custom Charge Start and Custom Charge Stop, to prevent AC power usage between certain times of each day.

By default, the Adaptive option is enabled.

Advanced Configuration

Enable Advanced Battery Charge Configuration

Peak Shift Enables the system to run on battery during peak power usage hours.

Enable Peak Shift

Enable or disable the advanced battery charge configuration.

By default, the Enable Advanced Battery Charge Configuration option is disabled.

By default, the Enable Peak Shift option is disabled.

USB PowerShare

Enable USB PowerShare Enable or disable the USB PowerShare.

By default, the Enable USB PowerShare option is disabled

Thermal Management Enables to cool the fan and processor heat management to adjust the system

performance, noise, and temperature.

100 System setup

Dell Latitude 3520 Service Manual

Specifications and Main Features

Frequently Asked Questions

User Manual

Working inside your computer

Safety instructions

Before working inside your computer

Entering Service Mode

Exiting Service Mode

Safety precautions

Electrostatic discharge—ESD protection

ESD field service kit

Transporting sensitive components

After working inside your computer

Removing and installing components

Recommended tools

Screw List

Major components of your system

MicroSD-card

Removing the microSD-card

Installing the MicroSD-card

SIM card tray

Removing the SIM card tray

Installing the SIM card tray

Base cover

Removing the base cover

Installing the base cover

Battery cable

Removing the battery cable

Installing the battery cable

Battery

Lithium-ion battery precautions

Removing the 3-cell battery

Installing the 3-cell battery

Removing the 4-cell battery

Installing the 4-cell battery

Memory module

Removing the memory module

Installing the memory module

M.2 solid-state drive thermal plate

Replacing the M.2 solid-state drive thermal plate

M.2 solid-state drive conversion bracket

Removing the M.2 solid-state drive conversion bracket

Installing the M.2 solid-state drive conversion bracket

M.2 solid-state drive

Removing the M.2 2230 solid-state drive

Installing the M.2 2230 solid-state drive

Removing the M.2 2280 solid-state drive

Installing the M.2 2280 solid-state drive

Hard-disk drive

Removing the hard-disk drive

Removing the hard-disk drive bracket

Installing the hard-disk drive bracket

Installing the hard-disk drive

WLAN card

Removing the WLAN card

Installing the WLAN card

WWAN card

Removing the WWAN card

Installing the WWAN card

I/O cable

Removing the I/O cable

Installing the I/O cable

Display assembly

Removing the display assembly

Installing the display assembly

System fan

Removing the system fan

Installing the system fan

Heatsink assembly

Removing the heatsink assembly

Installing the heatsink assembly

Power adapter port

Removing the power adapter port

Installing the power adapter port

Coin-cell battery

Removing the coin-cell battery

Installing the coin-cell battery

USB cable

Removing the USB cable