Dell Latitude 5310 Service Manual
Dell Latitude 5310 2-in-1
Service Manual
Regulatory Model: P96G
Regulatory Type: P96G003
May 2020
Rev. A00
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.
© 2020 Dell Inc. or its subsidiaries. All rights reserved. Dell, EMC, and other trademarks are trademarks of Dell Inc. or its
subsidiaries. Other trademarks may be trademarks of their respective owners.
Contents
1 Working on your computer............................................................................................................ 5
Safety instructions................................................................................................................................................................ 5
Before working inside your computer........................................................................................................................... 5
Safety precautions...........................................................................................................................................................6
Electrostatic discharge—ESD protection.................................................................................................................... 6
ESD field service kit ........................................................................................................................................................ 7
After working inside your computer.............................................................................................................................. 7
2 Technology and components......................................................................................................... 9
USB features..........................................................................................................................................................................9
USB Type-C..........................................................................................................................................................................10
HDMI 1.4.................................................................................................................................................................................11
Power button LED behavior............................................................................................................................................... 12
3 Major components of your system ............................................................................................... 14
4 Disassembly and reassembly........................................................................................................ 17
MicroSD card........................................................................................................................................................................ 17
Removing the microSD card......................................................................................................................................... 17
Installing the microSD card........................................................................................................................................... 18
SIM card tray........................................................................................................................................................................ 19
Removing the SIM card tray.........................................................................................................................................19
Installing the SIM card tray...........................................................................................................................................20
Base cover.............................................................................................................................................................................21
Removing the base cover..............................................................................................................................................21
Installing the base cover............................................................................................................................................... 23
Battery.................................................................................................................................................................................. 26
Lithium-ion battery precautions...................................................................................................................................26
Removing the battery................................................................................................................................................... 26
Installing the battery......................................................................................................................................................28
WWAN card......................................................................................................................................................................... 30
Removing the WWAN card..........................................................................................................................................30
Installing the WWAN card............................................................................................................................................. 31
WLAN card...........................................................................................................................................................................32
Removing the WLAN card............................................................................................................................................32
Installing the WLAN card.............................................................................................................................................. 33
Memory modules................................................................................................................................................................. 34
Removing the memory module.................................................................................................................................... 34
Installing the memory module...................................................................................................................................... 35
Solid-state drive...................................................................................................................................................................36
Removing the M.2 SSD................................................................................................................................................ 36
Installing the M.2 SSD...................................................................................................................................................38
Speakers............................................................................................................................................................................... 40
Removing the speakers................................................................................................................................................ 40
Contents 3
Installing the speakers...................................................................................................................................................43
System fan........................................................................................................................................................................... 45
Removing the system fan.............................................................................................................................................45
Installing the system fan............................................................................................................................................... 47
Heat sink...............................................................................................................................................................................49
Removing the heatsink................................................................................................................................................. 49
Installing the heatsink....................................................................................................................................................50
DC-in port.............................................................................................................................................................................50
Removing the DC-in port............................................................................................................................................. 50
Installing the DC-in port................................................................................................................................................52
LED board.............................................................................................................................................................................54
Removing the LED board............................................................................................................................................. 54
Installing the LED board................................................................................................................................................ 57
Touchpad button board......................................................................................................................................................60
Removing the touchpad button board....................................................................................................................... 60
Installing the touchpad button board...........................................................................................................................61
System board.......................................................................................................................................................................63
Removing the system board........................................................................................................................................ 63
Installing the system board...........................................................................................................................................69
Coin-cell battery.................................................................................................................................................................. 76
Removing the coin-cell battery....................................................................................................................................76
Installing the coin-cell battery...................................................................................................................................... 76
Display assembly.................................................................................................................................................................. 77
Removing the display assembly....................................................................................................................................77
Installing the display assembly..................................................................................................................................... 80
Keyboard...............................................................................................................................................................................83
Removing the keyboard................................................................................................................................................83
Installing the keyboard.................................................................................................................................................. 86
Smart card reader board.................................................................................................................................................... 89
Removing the smart card reader board......................................................................................................................89
Installing the smart card reader board.........................................................................................................................91
Palmrest assembly...............................................................................................................................................................93
Replacing the palmrest and keyboard assembly........................................................................................................93
5 Troubleshooting.........................................................................................................................95
SupportAssist Diagnostics..................................................................................................................................................95
System diagnostic lights..................................................................................................................................................... 97
WiFi power cycle................................................................................................................................................................. 98
6 Getting help and contacting Dell..................................................................................................99
4
Contents
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.
1
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.
To disconnect a network cable, first unplug the cable from your computer and then unplug the cable from
5. Disconnect your computer and all attached devices from their electrical outlets.
Working on your computer 5
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 notebook 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. Remove the
battery from notebooks.
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.
6
Working on your computer
• 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: 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.
Working on your computer
7
CAUTION: To connect a network cable, first plug the cable into the network device and then plug it into the
computer.
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.
8 Working on your computer
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 computers and peripheral
devices like mice, keyboards, external drivers, and printers.
Table 1. USB evolution
Type Data Transfer Rate Category Introduction Year
USB 2.0 480 Mbps High Speed 2000
2
USB 3.2 Gen 1
(previously USB
3.0/USB 3.1 Gen 1)
USB 3.1 Gen 2 10 Gbps SuperSpeed Plus 2013
5 Gbps SuperSpeed 2010
USB 3.2 Gen 1 (SuperSpeed USB)
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 Gen 1 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.
The topics below cover some of the most commonly asked questions regarding USB 3.0/USB 3.2 Gen 1.
Speed
Currently, there are five speed modes that are defined by the latest USB 3.0/USB 3.1 Gen 1 specification. Based on USB data transfer,
they are categorized as Low Speed, Full Speed, High Speed (from version 2.0 of the specification), SuperSpeed (from version 3.0), and
SuperSpeed+ (from version 3.1). The new SuperSpeed+ mode has a transfer rate of 20 Gbps. The USB 3.2 standard is backward
compatible with USB 3.1/3.0 and USB 2.0.
Technology and components 9
USB 3.2 Gen 1 achieves the much higher performance by the technical changes below:
• An additional physical bus that is added in parallel with the existing USB 2.0 bus (see the figure below).
• USB 2.0 previously had four wires (power, ground, and a pair for differential data); USB 3.1 Gen 1 adds four more for two pairs of
differential signals (receive and transmit) for a combined total of eight connections in the connectors and cabling.
• USB 3.2 Gen 1 uses the bi-directional data interface, rather than USB 2.0's half-duplex arrangement. This gives a 10-fold increase in
theoretical bandwidth.
Applications
USB 3.1 Gen 1 opens up the laneways and provides more headroom for devices to deliver a better overall experience. Where USB video
was barely tolerable previously (both from a maximum resolution, latency, and video compression perspective), it is easy to imagine that
with 5 to 10 times the bandwidth available, USB video solutions should work that much better. Single-link DVI requires almost 2 Gbps
throughput. Where 480 Mbps was limiting, 5 Gbps is more than promising. With its promised 4.8 Gbps speed, the standard finds its way
into some products that previously were not USB territory, like external RAID storage systems.
Listed below are some of the available SuperSpeed USB 3.0/USB 3.1 Gen 1 products:
• External Desktop USB 3.0/USB 3.2 Gen 1 Hard Drives
• Portable USB 3.2 Gen 1 Hard Drives
• USB 3.2 Gen 1 Drive Docks and Adapters
• USB 3.2 Gen 1 Flash Drives and Readers
• USB 3.2 Gen 1 Solid-state Drives
• USB 3.2 Gen 1 RAIDs
• Optical Media Drives
• Multimedia Devices
• Networking
• USB 3.2 Gen 1 Adapter Cards and Hubs
Compatibility
The good news is that USB 3.2 Gen 1 has been carefully planned from the start to peacefully co-exist with USB 2.0. First of all, while USB
3.2 Gen 1 specifies new physical connections and thus new cables to take advantage of the higher speed capability of the new protocol,
the connector itself remains the same rectangular shape with the four USB 2.0 contacts in the exact same location as before. Five new
connections to receive and transmit data independently are present on USB 3.0/USB 3.2 Gen 1 cables and only come into contact when
connected to a proper SuperSpeed USB connection.
USB Type-C
USB Type-C is a new, tiny physical connector. The connector itself can support various exciting new USB standards like USB 3.1 and USB
power delivery (USB PD).
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
10
Technology and components
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.
USB Type-C and USB 3.1
USB 3.1 is a new USB standard. USB 3's theoretical bandwidth is 5 Gbps, while USB 3.1's is 10 Gbps. That's double the bandwidth, as fast
as a first-generation Thunderbolt connector. USB Type-C isn't the same thing as USB 3.1. USB Type-C is just a connector shape, and the
underlying technology could just be USB 2 or USB 3.0. In fact, Nokia's N1 Android tablet uses a USB Type-C connector, but underneath
it's all USB 2.0 — not even USB 3.0. However, these technologies are closely related.
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
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.
Technology and components
11
• 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.
• Full boot: Within 22 secs after pressing the power button.
• Below is the example timelines:
12
Technology and components
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.
Technology and components
13
3
14 Major components of your system
Major components of your system
Major components of your system 15
1. Base cover
2. DC-in port
3. Heatsink
4. Memory modules
5. System board
6. Solid state drive
7. Battery
8. Speaker
9. Smart card reader board
10. Palmrest
11. Display assembly
12. LED board
13. Touchpad button 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.
16 Major components of your system
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
• Smart card reader board
• Palmrest assembly
4
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].
Disassembly and reassembly 17
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].
18
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
19
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].
20
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
21
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].
22
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
23
3. Press the edges and sides of the base cover until it snaps into place.
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Disassembly and reassembly
4. Tighten the eight captive screws to secure the base cover to the computer.
Disassembly and reassembly
25
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].
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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
27
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].
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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
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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].
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Disassembly and reassembly
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