Dell W52T9 Specification Sheet

Dell Latitude 5310

Service Manual

Regulatory Model: P97G Regulatory Type: P97G002

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.

subsidiaries. Other trademarks may be trademarks of their respective owners.

April 2020

Rev. A00

Contents

1 Working on your computer............................................................................................................ 6

Safety instructions.................................................................................................................................................................6

Before working inside your computer........................................................................................................................... 6

Safety precautions...........................................................................................................................................................7

Electrostatic discharge—ESD protection.................................................................................................................... 7

ESD field service kit ........................................................................................................................................................8

After working inside your computer.............................................................................................................................. 8

2 Technology and components........................................................................................................10

USB features........................................................................................................................................................................ 10

USB Type-C...........................................................................................................................................................................11

HDMI 1.4................................................................................................................................................................................ 12

Power button LED behavior............................................................................................................................................... 12

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

4 Disassembly and reassembly........................................................................................................ 16

MicroSD card........................................................................................................................................................................16

Removing the microSD card.........................................................................................................................................16

Installing the microSD card............................................................................................................................................17

SIM card tray........................................................................................................................................................................ 18

Removing the SIM card tray.........................................................................................................................................18

Installing the SIM card tray........................................................................................................................................... 19

Base cover............................................................................................................................................................................20

Removing the base cover.............................................................................................................................................20

Installing the base cover............................................................................................................................................... 22

Battery.................................................................................................................................................................................. 25

Lithium-ion battery precautions...................................................................................................................................25

Removing the battery................................................................................................................................................... 25

Installing the battery......................................................................................................................................................27

WWAN card......................................................................................................................................................................... 29

Removing the WWAN card.......................................................................................................................................... 29

Installing the WWAN card............................................................................................................................................ 30

WLAN card............................................................................................................................................................................31

Removing the WLAN card............................................................................................................................................ 31

Installing the WLAN card.............................................................................................................................................. 32

Memory modules................................................................................................................................................................. 33

Removing the memory module.................................................................................................................................... 33

Installing the memory module...................................................................................................................................... 34

Solid-state drive...................................................................................................................................................................35

Removing the M.2 SSD................................................................................................................................................ 35

Installing the M.2 SSD................................................................................................................................................... 37

Speakers............................................................................................................................................................................... 39

Removing the speakers................................................................................................................................................ 39

Contents 3

Installing the speakers....................................................................................................................................................41

System fan........................................................................................................................................................................... 43

Removing the system fan.............................................................................................................................................43

Installing the system fan............................................................................................................................................... 45

Heat sink............................................................................................................................................................................... 47

..........................................................................................................................................................................................47

DC-in port.............................................................................................................................................................................48

Removing the DC-in port..............................................................................................................................................48

Installing the DC-in port................................................................................................................................................50

LED board............................................................................................................................................................................. 51

Removing the LED board.............................................................................................................................................. 51

Installing the LED board................................................................................................................................................54

Touchpad button board...................................................................................................................................................... 57

Removing the touchpad button board........................................................................................................................57

Installing the touchpad button board..........................................................................................................................58

System board.......................................................................................................................................................................60

Removing the system board........................................................................................................................................ 60

Installing the system board...........................................................................................................................................65

Coin-cell battery.................................................................................................................................................................. 70

Removing the coin-cell battery....................................................................................................................................70

Installing the coin-cell battery....................................................................................................................................... 71

Display assembly.................................................................................................................................................................. 72

Removing the display assembly................................................................................................................................... 72

Installing the display assembly......................................................................................................................................75

Keyboard...............................................................................................................................................................................78

Removing the keyboard................................................................................................................................................ 78

Installing the keyboard................................................................................................................................................... 81

Keyboard bracket................................................................................................................................................................ 84

Removing the keyboard bracket..................................................................................................................................84

Installing the keyboard bracket....................................................................................................................................85

Smart card reader board.....................................................................................................................................................87

Removing the smart card reader board......................................................................................................................87

Installing the smart card reader board........................................................................................................................ 88

Display bezel.........................................................................................................................................................................90

Removing display bezel.................................................................................................................................................90

Installing the display bezel ........................................................................................................................................... 92

Hinge caps............................................................................................................................................................................94

Removing hinge caps.................................................................................................................................................... 94

Installing hinge caps...................................................................................................................................................... 95

Display hinges.......................................................................................................................................................................96

Removing display hinge................................................................................................................................................ 96

Installing display hinge .................................................................................................................................................. 97

Display panel.........................................................................................................................................................................98

Removing display panel.................................................................................................................................................98

Installing display panel ................................................................................................................................................. 101

Camera................................................................................................................................................................................ 102

Removing camera........................................................................................................................................................ 102

Installing camera...........................................................................................................................................................103

Display (eDP) cable........................................................................................................................................................... 105

Contents

Removing display cable............................................................................................................................................... 105

Installing display cable..................................................................................................................................................106

Display back cover assembly............................................................................................................................................ 107

Replacing the display back cover............................................................................................................................... 107

Palmrest assembly............................................................................................................................................................. 108

Replacing the palmrest and keyboard assembly...................................................................................................... 108

5 Troubleshooting.........................................................................................................................111

SupportAssist Diagnostics..................................................................................................................................................111

System diagnostic lights.................................................................................................................................................... 113

WiFi power cycle.................................................................................................................................................................114

6 Getting help..............................................................................................................................115

Contacting Dell....................................................................................................................................................................115

Contents 5

Working on your computer

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

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.

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

Before working inside your computer

About this task

To avoid damaging your computer, perform the following steps before you begin working inside the computer.

Steps

1. Ensure that you follow the safety precautions.

2. Ensure that your work surface is flat and clean to prevent the computer cover from being scratched.

3. Turn off your computer.

4. Disconnect all network cables from the computer.

CAUTION:

the network device.

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

To disconnect a network cable, first unplug the cable from your computer and then unplug the cable from

6 Working on your computer

6. Press and hold the power button while the computer is unplugged to ground the system board.

NOTE: 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.

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.

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.

The more difficult type of damage to recognize and troubleshoot is the intermittent (also called latent or "walking wounded") failure.

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.

Working on your computer

ESD field service kit

The unmonitored Field Service kit is the most commonly used service kit. Each Field Service kit includes three main components: antistatic 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 antistatic 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. ESDsensitive 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.

• 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.

After working inside your computer

About this task

After you complete any replacement procedure, ensure that you connect any external devices, cards, and cables before turning on your computer.

Steps

1. Connect any telephone or network cables to your computer.

CAUTION:

computer.

8 Working on your computer

To connect a network cable, first plug the cable into the network device and then plug it into the

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

3. Turn on your computer.

4. If required, verify that the computer works correctly by running the diagnostic tool.

Working on your computer 9

Technology and components

This chapter details the technology and components available in the system.

Topics:

• USB features

• USB Type-C

• HDMI 1.4

• Power button LED behavior

USB features

Universal Serial Bus, or USB, was introduced in 1996. It dramatically simplified the connection between host system units and peripheral devices like mouses, keyboards, external drivers, and printers.

Table 1. USB evolution

Type Data Transfer Rate Category

USB 2.0 480 Mbps High Speed

USB 3.2 Gen 1 5 Gbps SuperSpeed USB 5 Gbps

USB 3.2 Gen 2 10 Gbps SuperSpeed USB 10 Gbps

USB 3.2

For years, the USB 2.0 has been firmly entrenched as the de facto interface standard in the personal computer world with about 6 billion devices sold, and yet the need for more speed grows by ever faster computing hardware and ever greater bandwidth demands. The USB

3.0/USB 3.1 Gen 1 finally has the answer to the consumers' demands with a theoretically 10 times faster than its predecessor. In a nutshell,

USB 3.2 features are as follows:

• Higher transfer rates (up to 20 Gbps).

• Increased multilane operation of 10 Gbps each.

• Increased maximum bus power and increased device current draw to better accommodate power-hungry devices.

• New power management features.

• Full-duplex data transfers and support for new transfer types.

• Backward compatibility with USB 3.1/3.0 and USB 2.0.

• New connectors and cable.

Speed

• The USB 3.2 provides three transfer rates:

• USB 3.2 Gen 1 (5 Gbps)

• USB 3.2 Gen 2 (10 Gbps)

• USB 3.2 Gen 2x2 (20 Gbps)

• The marketing names below indicates the performance signaling that a product delivers in the product packaging, and any other marketing materials:

• SuperSpeed USB 5Gbps—product signals at 5 Gbps

• SuperSpeed USB 10Gbps—product signals at 10 Gbps

• SuperSpeed USB 20Gbps—product signals at 20 Gbps

NOTE:

• USB 3.2 protocol specification defines only the performance capabilities that may be implemented in a product.

10 Technology and components

• USB 3.2 is not USB Power Delivery or USB Battery Charging.

USB Type-C

USB Type-C is a new physical connector. The connector itself can support various exciting new USB standards.

Alternate Mode

USB Type-C is a new connector standard that is very small. It is about a third the size of an old USB Type-A plug. This is a single connector standard that every device should be able to use. USB Type-C ports can support a variety of different protocols using “alternate modes,” which allows you to have adapters that can output HDMI, VGA, DisplayPort, or other types of connections from that single USB port

USB Power Delivery

The USB PD specification is also closely intertwined with USB Type-C. Currently, smartphones, tablets, and other mobile devices often use a USB connection to charge. A USB 2.0 connection provides up to 2.5 watts of power — that'll charge your phone, but that's about it. A laptop might require up to 60 watts, for example. The USB Power Delivery specification ups this power delivery to 100 watts. It's bidirectional, so a device can either send or receive power. And this power can be transferred at the same time the device is transmitting data across the connection.

This could spell the end of all those proprietary laptop charging cables, with everything charging via a standard USB connection. You could charge your laptop from one of those portable battery packs you charge your smartphones and other portable devices from today. You could plug your laptop into an external display connected to a power cable, and that external display would charge your laptop as you used it as an external display — all via the one little USB Type-C connection. To use this, the device and the cable have to support USB Power Delivery. Just having a USB Type-C connection doesn't necessarily mean they do.

Thunderbolt 3 over USB Type-C

Thunderbolt 3 brings Thunderbolt to USB Type-C at speeds up to 40 Gbps, creating one compact port that does it all - delivering the fastest, most versatile connection to any dock, display or data device like an external hard drive. Thunderbolt 3 uses a USB Type-C connector/port to connect to supported peripherals.

1. Thunderbolt 3 uses USB Type-C connector and cables - It is compact and reversible

2. Thunderbolt 3 supports speed up to 40 Gbps

3. DisplayPort 1.4 – compatible with existing DisplayPort monitors, devices and cables

4. USB Power Delivery - Up to 130W on supported computers

Key Features of Thunderbolt 3 over USB Type-C

1. Thunderbolt, USB, DisplayPort and power on USB Type-C on a single cable (features vary between different products)

2. USB Type-C connector and cables which are compact and reversible

3. Supports Thunderbolt Networking (*varies between different products)

4. Supports up to 4K displays

5. Up to 40 Gbps

NOTE: Data transfer speed may vary between different devices.

Thunderbolt Icons

Figure 1. Thunderbolt Iconography Variations

Technology and components

HDMI 1.4

This topic explains the HDMI 1.4 and its features along with the advantages.

HDMI (High-Definition Multimedia Interface) is an industry-supported, uncompressed, all-digital audio/video interface. HDMI provides an interface between any compatible digital audio/video source, such as a DVD player, or A/V receiver and a compatible digital audio and/or video monitor, such as a digital TV (DTV). The primary advantage is cable reduction and content protection provisions. HDMI supports standard, enhanced, or high-definition video, plus multichannel digital audio on a single cable.

HDMI 1.4 Features

• HDMI Ethernet Channel - Adds high-speed networking to an HDMI link, allowing users to take full advantage of their IP-enabled devices without a separate Ethernet cable.

• Audio Return Channel - Allows an HDMI-connected TV with a built-in tuner to send audio data "upstream" to a surround audio system, eliminating the need for a separate audio cable.

• 3D - Defines input/output protocols for major 3D video formats, paving the way for true 3D gaming and 3D home theater applications.

• Content Type - Real-time signaling of content types between display and source devices, enabling a TV to optimize picture settings based on content type.

• Additional Color Spaces - Adds support for additional color models used in digital photography and computer graphics.

• 4K Support - Enables video resolutions far beyond 1080p, supporting next-generation displays that will rival the Digital Cinema systems used in many commercial movie theaters.

• HDMI Micro Connector - A new, smaller connector for phones and other portable devices, supporting video resolutions up to 1080p.

• Automotive Connection System - New cables and connectors for automotive video systems, designed to meet the unique demands of the motoring environment while delivering true HD quality.

Advantages of HDMI

• Quality HDMI transfers uncompressed digital audio and video for the highest, crispest image quality.

• Low-cost HDMI provides the quality and functionality of a digital interface while also supporting uncompressed video formats in a simple, cost-effective manner.

• Audio HDMI supports multiple audio formats from standard stereo to multichannel surround sound.

• HDMI combines video and multichannel audio into a single cable, eliminating the cost, complexity, and confusion of multiple cables currently used in A/V systems.

• HDMI supports communication between the video source (such as a DVD player) and the DTV, enabling new functionality.

Power button LED behavior

On certain Dell Latitude systems, the power button LED is used to provide an indication of the system status, and as a result the power button illuminates when pressed. The systems with the optional power button/fingerprint reader will have no LED under the power button and hence will apply the available LED's in the system to provide an indication of the system status.

Power button LED behavior without Fingerprint reader

• System is ON (S0) = LED illuminates solid white.

• System in Sleep/Standby (S3, SOix) = LED is off

• System is Off/Hibernating (S4/S5) = LED is off

Power On and LED behavior with Fingerprint reader

• Pressing the power button for a duration between 50 msec to 2 sec turns on the device.

• Power button does not register additional presses until the SOL (Sign-Of-Life) has been provided to the user.

• System LED's illuminates upon pressing the power button.

• All the available LED's (Keyboard backlit/ Keyboard caps lock LED/ Battery Charge LED) illuminates and displays specified behavior.

• The auditory tone is Off by default. It can be enabled in the BIOS setup.

• Safeguards do not time out if the device gets hung during the logon process.

• Dell logo: Turns on within 2 secs after pressing the power button.

Technology and components

• Full boot: Within 22 secs after pressing the power button.

• Below is the example timelines:

Power button with fingerprint reader will have no LED and will leverage the available LED's in the system to provide indication of the system status

• Power Adapter LED:

• The LED on Power adapter connector illuminates white when power is supplied from electrical outlet.

• Battery Indicator LED:

• If the computer is connected to an electrical outlet, the battery light operates as follows:

1. Solid white -the battery is charging. When the charge is complete the LED turns off.

• If the computer is running on a battery, the battery light operates as follows:

1. Off -the battery is adequately charged (or the computer is turned off).

2. Solid amber -the battery charge is critically low. A low battery state is approximately 30 minutes or less of battery life remaining.

• Camera LED

• White LED activates when camera is on.

• Mic Mute LED:

• When activated (muted), the mic mute LED on the F4 Key should illuminate WHITE.

• RJ45 LEDs:

Table 2. LED on either side of RJ45 port

•

Link connection indicator (LHS) Activity indicator (RHS)

Green Amber

Technology and components 13

Major components of your system

1. Base cover 2. DC-in port

3. Heatsink 4. Memory modules

14 Major components of your system

5. System board 6. Solid state drive

7. Battery 8. Speakers

9. Smart card reader board 10. Palmrest assembly

11. Display assembly 12. Touchpad button board

13. LED board 14. Coin-cell battery

15. WLAN card 16. WWAN card

17. System fan

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.

Major components of your system 15

Disassembly and reassembly

NOTE: Some of the images used in this manual are leveraged from its predecessor model for illustration purpose and

may slightly vary from the actual system. The images are still applicable to convey the service procedures accurately

Topics:

• MicroSD card

• SIM card tray

• Base cover

• Battery

• WWAN card

• WLAN card

• Memory modules

• Solid-state drive

• Speakers

• System fan

• Heat sink

• DC-in port

• LED board

• Touchpad button board

• System board

• Coin-cell battery

• Display assembly

• Keyboard

• Keyboard bracket

• Smart card reader board

• Display bezel

• Hinge caps

• Display hinges

• Display panel

• Camera

• Display (eDP) cable

• Display back cover assembly

• Palmrest assembly

MicroSD card

Removing the microSD card

Prerequisites

Follow the procedure in Before working inside your computer

Steps

1. Push the microSD card to release it from the computer [1].

2. Slide the microSD card out of the computer [2].

16 Disassembly and reassembly

Installing the microSD card

Steps

1. Align the microSD card to its slot on the computer [1].

2. Slide the microSD card into the slot until it clicks into place [2].

Disassembly and reassembly

Next steps

Follow the procedures in After working inside your computer.

SIM card tray

Removing the SIM card tray

Prerequisites

Follow the procedure in Before working inside your computer

Steps

1. Insert a pin into the hole of the SIM card tray and push inward until the tray is released [1, 2].

2. Slide the SIM card tray out of the computer [3].

Disassembly and reassembly

Installing the SIM card tray

Steps

1. Place the SIM card into the SIM card tray with the metallic contact facing up [1].

2. Align the SIM card tray with the slot on the computer and carefully slide it in [2].

3. Slide the SIM card tray into the slot, until it clicks into place [3].

Disassembly and reassembly

Next steps

Follow the procedures 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.

Steps

1. Loosen the eight captive screws that secure the base cover to the computer.

Disassembly and reassembly

2. Using a plastic scribe [1], pry the base cover from the top-left corner and continue to work on the sides to open the base cover [2].

Disassembly and reassembly

3. Lift and remove the base cover away from the computer.

4. After removing the base cover, remove the SIM cover. To remove the SIM cover pry the dummy SIM card upwards from the recess point which is the area between the dummy SIM card and system chassis.

Installing the base cover

Steps

1. Transfer the SIM cover to the new base cover.

2. Align and place the base cover on the computer.

Disassembly and reassembly

3. Press the edges and sides of the base cover until it snaps into place.

Disassembly and reassembly

4. Tighten the eight captive screws to secure the base cover to the computer.

Disassembly and reassembly

Next steps

1. Replace the microSD card.

2. 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 as much as possible before removing it from the system. This can be done by disconnecting

the AC adapter from the system to allow the battery to drain.

• 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.

• 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 battery

Prerequisites

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

2. Remove the microSD card.

3. Remove the base cover.

Steps

1. Peel the adhesive tape from the battery [1].

2. Disconnect the battery cable from the connector on the system board [2].

Disassembly and reassembly

3. Loosen the two captive screws that secure the battery to the palm rest assembly [1].

4. Lift and slide the battery away from the palm rest assembly. [2].

Disassembly and reassembly

Installing the battery

Steps

1. Align the tabs on the battery with the slots on the palm rest assembly [1].

2. Place the battery in the battery bay.

3. Tighten the two captive screws to secure the battery to the palmrest [2].

Disassembly and reassembly

4. Connect the battery cable to the connector on the system board [1].

5. Affix the adhesive tapes on the battery [2].

Disassembly and reassembly

Next steps

1. Replace the base cover.

2. Replace the microSD card.

3. 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 base cover.

4. Disconnect the battery cable.

Steps

1. Remove the single (M2x3) screw that secures the WWAN card bracket to the WWAN card [1].

2. Remove the WWAN card bracket from the WWAN card [2].

3. Disconnect the antenna cables from the WWAN card [3].

4. Slide and remove the WWAN card from the WWAN card slot. [4].

Disassembly and reassembly

Installing the WWAN card

About this task

CAUTION: To avoid damage to the WWAN card, do not place any cables under it.

Steps

1. Align the notch on the WWAN card with the tab on the WWAN card slot and insert the WWAN card at an angle into the WWAN card slot [1].

2. Connect the antenna cables to the WWAN card [2].

3. Place the WWAN card bracket on the WWAN card [3].

4. Replace the single (M2x3) screw to secure the WWAN card bracket to the WWAN card [4].

Disassembly and reassembly

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