Dell Latitude 7230 Rugged Extreme User manual

Latitude 7230 Rugged Extreme Tablet
Service Manual
Regulatory Model: T06H
Regulatory Type: T06H001
December 2022
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.
© 2022 Dell Inc. or its subsidiaries. All rights reserved. Dell Technologies, Dell, and other trademarks are trademarks of Dell Inc. or its
subsidiaries. Other trademarks may be trademarks of their respective owners.

Chapter 1: Working inside your computer...................................................................................... 6
Safety instructions.............................................................................................................................................................. 6
Installation and operating instructions......................................................................................................................6
Before working inside your tablet.............................................................................................................................. 7
Safety precautions........................................................................................................................................................ 8
Electrostatic discharge—ESD protection............................................................................................................... 8
ESD field service kit ..................................................................................................................................................... 9
Transporting sensitive components.........................................................................................................................10
After working inside your tablet............................................................................................................................... 10
BitLocker........................................................................................................................................................................ 10
Chapter 2: Removing and installing components...........................................................................11
Recommended tools...........................................................................................................................................................11
Screw list.............................................................................................................................................................................. 11
Major components of Latitude 7230 Rugged Extreme Tablet................................................................................13
Batteries...............................................................................................................................................................................15
Lithium-ion battery precautions............................................................................................................................... 15
Removing the batteries.............................................................................................................................................. 15
Installing the batteries.................................................................................................................................................16
Subscriber Identification Module (SIM) card.............................................................................................................. 17
Removing the uSIM......................................................................................................................................................17
Inserting the uSIM........................................................................................................................................................18
Stylus.................................................................................................................................................................................... 19
Removing the stylus.................................................................................................................................................... 19
Installing the stylus......................................................................................................................................................20
Handle................................................................................................................................................................................... 21
Removing the handle...................................................................................................................................................21
Installing the handle.................................................................................................................................................... 22
Back-cover assembly........................................................................................................................................................23
Removing the base-cover assembly....................................................................................................................... 23
Installing the base-cover assembly......................................................................................................................... 26
M.2 solid-state drive.........................................................................................................................................................28
Removing the M.2 2230 solid-state drive............................................................................................................. 28
Installing the M.2 2230 solid-state drive............................................................................................................... 29
Wireless card.......................................................................................................................................................................31
Removing the wireless card.......................................................................................................................................31
Installing the wireless card........................................................................................................................................ 32
WWAN card........................................................................................................................................................................ 34
Removing the WWAN card....................................................................................................................................... 34
Installing the WWAN card......................................................................................................................................... 35
I/O daughter-board.......................................................................................................................................................... 38
Removing the I/O daughter-board......................................................................................................................... 38
Installing the I/O daughter-board............................................................................................................................39
USB/HDMI port.................................................................................................................................................................40
Contents
Contents 3

Removing the USB/HDMI port................................................................................................................................ 40
Installing the USB/HDMI port................................................................................................................................... 41
USB-port assembly........................................................................................................................................................... 43
Removing the USB-port assembly.......................................................................................................................... 43
Installing the USB-port assembly............................................................................................................................ 43
Mini-serial RS232 port assembly................................................................................................................................... 44
Removing the Mini-serial RS232 port assembly.................................................................................................. 44
Installing the Mini-serial RS232 port assembly.....................................................................................................44
RJ45-port assembly..........................................................................................................................................................45
Removing the RJ45-port assembly.........................................................................................................................45
Installing the RJ45-port assembly...........................................................................................................................45
Blank top-cover................................................................................................................................................................. 46
Removing the blank top-cover.................................................................................................................................46
Installing the blank top-cover................................................................................................................................... 47
USB daughter-board........................................................................................................................................................ 48
Removing the USB daughter-board........................................................................................................................48
Installing the USB daughter-board..........................................................................................................................49
Mini-serial RS232 daughter-board................................................................................................................................ 49
Removing the Mini-serial RS232 daughter-board............................................................................................... 49
Installing the Mini-serial RS232 daughter-board................................................................................................. 49
RJ45 daughter-board.......................................................................................................................................................50
Removing the RJ45 daughter-board......................................................................................................................50
Installing the RJ45 daughter-board......................................................................................................................... 51
Decoder daughter-board................................................................................................................................................. 52
Removing the decoder daughter-board.................................................................................................................52
Installing the decoder daughter-board...................................................................................................................52
World-facing camera........................................................................................................................................................ 53
Removing the world-facing camera........................................................................................................................53
Installing the world-facing camera.......................................................................................................................... 54
Heat sink..............................................................................................................................................................................56
Removing the heat sink............................................................................................................................................. 56
Installing the heat sink................................................................................................................................................57
Coin-cell battery................................................................................................................................................................59
Removing the coin-cell battery................................................................................................................................59
Installing the coin-cell battery..................................................................................................................................60
USB/HDMI door................................................................................................................................................................. 61
Removing the USB/HDMI door................................................................................................................................ 61
Installing the USB/HDMI door..................................................................................................................................62
Scanner assembly..............................................................................................................................................................63
Removing the scanner assembly............................................................................................................................. 63
Installing the scanner assembly................................................................................................................................64
Front camera and microphone assembly.....................................................................................................................65
Removing the front camera and microphone assembly.....................................................................................65
Installing the front camera and microphone assembly.......................................................................................66
Fan and SSD heat-sink assembly...................................................................................................................................67
Removing the fan with SSD heat-sink................................................................................................................... 67
Installing the fan with SSD heat-sink..................................................................................................................... 68
System board..................................................................................................................................................................... 69
Removing the system board.....................................................................................................................................69
Installing the system board....................................................................................................................................... 72
4Contents

Display assembly................................................................................................................................................................76
Removing the display-panel assembly.................................................................................................................... 76
Installing the display-panel assembly...................................................................................................................... 77
Chapter 3: Drivers and downloads............................................................................................... 79
Chapter 4: BIOS setup.................................................................................................................80
Entering BIOS setup program........................................................................................................................................ 80
Navigation keys..................................................................................................................................................................80
One time boot menu.........................................................................................................................................................80
System setup options....................................................................................................................................................... 81
Updating the BIOS............................................................................................................................................................ 93
Updating the BIOS in Windows................................................................................................................................93
Updating the BIOS using the USB drive in Windows..........................................................................................93
Updating the BIOS from the F12 One-Time boot menu.....................................................................................94
System and setup password.......................................................................................................................................... 95
Assigning a system setup password....................................................................................................................... 95
Deleting or changing an existing system setup password.................................................................................95
Clearing CMOS settings.................................................................................................................................................. 96
Clearing BIOS (System Setup) and System passwords.......................................................................................... 96
Chapter 5: Troubleshooting......................................................................................................... 97
Handling swollen Lithium-ion batteries........................................................................................................................ 97
Dell SupportAssist Pre-boot System Performance Check diagnostics................................................................97
Running the SupportAssist Pre-Boot System Performance Check................................................................98
Built-in self-test (BIST)................................................................................................................................................... 98
M-BIST...........................................................................................................................................................................98
LCD Power rail test (L-BIST)................................................................................................................................... 99
LCD Built-in Self Test (BIST)................................................................................................................................... 99
System-diagnostic lights................................................................................................................................................. 99
Real-Time Clock (RTC Reset).......................................................................................................................................101
Recovering the operating system................................................................................................................................ 101
Backup media and recovery options........................................................................................................................... 102
WiFi power cycle..............................................................................................................................................................102
Drain residual flea power (perform hard reset)........................................................................................................102
Chapter 6: Getting help and contacting Dell...............................................................................104
Contents 5

Working inside your computer
Safety instructions
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 you have read the safety information that shipped
with your computer.
WARNING: Before working inside your computer, read the safety information that is shipped with your
computer. For more safety best practices, see the Regulatory Compliance home page at www.dell.com/
regulatory_compliance.
WARNING: Disconnect your computer from 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 your
computer to an electrical outlet.
CAUTION: To avoid damaging the computer, ensure that the work surface is flat, dry, and clean.
CAUTION: To avoid damaging the components and cards, handle them by their edges, and avoid touching the
pins and the contacts.
CAUTION: You should only perform troubleshooting and repairs as authorized or directed by the Dell technical
assistance team. Damage due to servicing that is not authorized by Dell is not covered by your warranty. See the
safety instructions that is shipped with the product or at www.dell.com/regulatory_compliance.
CAUTION: Before touching anything inside your computer, ground yourself by touching an unpainted metal
surface, such as the metal at the back of the computer. While you work, periodically touch an unpainted metal
surface to dissipate static electricity which could harm internal components.
CAUTION: When you disconnect a cable, pull it by its connector or its pull tab, not the cable itself. Some cables
have connectors with locking tabs or thumbscrews that you must disengage before disconnecting the cable.
When disconnecting cables, keep them evenly aligned to avoid bending the connector pins. When connecting
cables, ensure that the ports and the connectors are correctly oriented and aligned.
CAUTION: Press and eject any installed card from the media-card reader.
CAUTION: Exercise caution when handling Lithium-ion batteries in laptops. Swollen batteries should not be used
and should be replaced and disposed properly.
NOTE: The color of your computer and certain components may appear differently than shown in this document.
Installation and operating instructions
An installation manual is provided with each unit to direct the user on proper installation and operation of the device.
NOTE: Warning and Safety instructions are provided in English and French for Canadian Certification.
NOTE: Suitable for use in class I, division 2, groups A, B, C and D hazardous locations, or nonhazardous locations only.
WARNING: Explosion hazard - Do not disconnect equipment (rechargeable Lithium-ion battery) unless power
has been switched off or the area is known to be non-hazardous.
WARNING: Explosion hazard - Substitution of any component can impair suitability for class I, division 2.
1
6 Working inside your computer

NOTE: Ambient temperature: - Range as under Ratings.
NOTE: Temperature code - T4A
WARNING: Explosion hazard - Do not use these external connections in a hazardous location: POGO ports,
smart card reader, SIM-card slot, mini-RS232 port, USB 3.0 port, DC-in Jack, audio jack, mini-HDMI port,
microSD-card reader, antenna pass-through port, or USB type-C port.
WARNING: Explosion hazard - The tablet is to be only powered from the battery pack while in hazardous
locations. The power adapter is not certified for use in hazardous locations and not to be used in hazardous
locations.
WARNING: Explosion hazard - The battery must only be changed or charged in an area free of ignitable
concentrations.
WARNING: Explosion hazard - Do not remove or replace the microSD-card and/or battery pack while the circuit
is live unless the area is free of ignitible concentrations.
NOTE: To avoid risk of fire or explosion, replace battery manufactured by Simplo Technology Co., Ltd. only. Use of any
another battery can cause risk of fire or explosion.
Before working inside your tablet
About this task
To avoid damaging your tablet, perform the following steps before you begin working inside the tablet:
Steps
1. Ensure that you follow the Safety Instruction.
2. Ensure that your work surface is flat and clean to prevent the tablet cover from being scratched.
3. Turn off your tablet.
4. If the tablet is connected to a docking device (docked) such as the mobile keyboard or a docking station, undock it.
5. Disconnect your tablet and all attached devices from their electrical outlets.
6. Press and hold the power button while the tablet 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 simultaneously as touching a connector on the back of the tablet.
7. Remove any media card and optical disc from your tablet, if applicable.
8. Enter the service mode, if you are able to power on your computer.
Service Mode
Service Mode is used to cut-off power, without disconnecting battery cable from system board prior conducting repairs in
the computer.
CAUTION: If you are unable to turn on the computer to put it into Service Mode or the computer does not
support Service Mode then proceed to disconnect the battery cable. To disconnect the battery cable, follow
the steps in Removing the back-cover assembly.
NOTE: Ensure that your computer is shut down and the AC adapter is disconnected.
a. Hold <B> key on the keyboard and press the power button for 3 seconds or until the Dell logo appears on the screen.
b. Press any key to continue.
c. If the AC adapter is not disconnected, a message prompting you to remove the AC adapter appears on the screen.
Remove the AC adapter and then press any key to continue the Service Mode procedure. The Service Mode procedure
automatically skips the following step if the Owner Tag of the computer is not set up in advance by the user.
d. When the ready-to-proceed message appears on the screen, press any key to proceed. The computer emits three short
beeps and shuts down immediately.
e. Once the computer shuts down, it has successfully entered Service Mode.
Working inside your computer 7

NOTE: If you are unable to power on your computer or unable to enter service mode skip this process.
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 tablet 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.
8Working inside your computer

●When unpacking a static-sensitive component from its shipping carton, do not remove the component from the anti-static
packing material until you are ready to install the component. Before unwrapping the anti-static packaging, ensure that you
discharge static electricity from your body.
●Before transporting a static-sensitive component, place it in an anti-static container or packaging.
ESD field service kit
The unmonitored Field Service kit is the most commonly used service kit. Each Field Service kit includes three main components:
anti-static mat, wrist strap, and bonding wire.
Components of an ESD field service kit
The components of an ESD field service kit are:
●Anti-Static Mat – The anti-static mat is dissipative and parts can be placed on it during service procedures. When using an
anti-static mat, your wrist strap should be snug and the bonding wire should be connected to the mat and to any bare metal
on the system being worked on. Once deployed properly, service parts can be removed from the ESD bag and placed directly
on the mat. ESD-sensitive items are safe in your hand, on the ESD mat, in the system, or inside a bag.
●Wrist Strap and Bonding Wire – The wrist strap and bonding wire can be either directly connected between your wrist
and bare metal on the hardware if the ESD mat is not required, or connected to the anti-static mat to protect hardware that
is temporarily placed on the mat. The physical connection of the wrist strap and bonding wire between your skin, the ESD
mat, and the hardware is known as bonding. Use only Field Service kits with a wrist strap, mat, and bonding wire. Never
use wireless wrist straps. Always be aware that the internal wires of a wrist strap are prone to damage from normal wear
and tear, and must be checked regularly with a wrist strap tester in order to avoid accidental ESD hardware damage. It is
recommended to test the wrist strap and bonding wire at least once per week.
●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 to 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 to keep sensitive parts separate from all insulator parts while performing service
and that they use anti-static bags for transporting sensitive components.
Working inside your computer 9

Transporting sensitive components
When transporting ESD sensitive components such as replacement parts or parts to be returned to Dell, it is critical to place
these parts in anti-static bags for safe transport.
After working inside your tablet
About this task
After you complete any replacement procedure, ensure that you connect external devices, cards, and cables before turning on
your tablet.
CAUTION: To avoid damage to the tablet, use only the battery that is designed for this particular Dell tablet. Do
not use batteries that are designed for other Dell tablets.
Steps
1. Connect any external devices, such as a mobile keyboard or a docking station, and replace any media card that you removed
before working on your tablet.
2. Connect your tablet and all attached devices to their electrical outlets.
NOTE: To exit service mode, ensure to connect the AC adapter to the power-adapter port on your computer.
3. Press the power button to turn on the tablet. Your tablet will automatically return to normal functioning mode.
BitLocker
CAUTION: If BitLocker is not suspended before updating the BIOS, the next time you reboot the system it
will not recognize the BitLocker key. You will then be prompted to enter the recovery key to progress, and
the system will ask for this on each reboot. If the recovery key is not known this can result in data loss or
an unnecessary operating system reinstall. For more information about this subject, see Knowledge Article:
updating the BIOS on Dell systems with BitLocker enabled.
The installation of the following components triggers BitLocker:
●Hard disk drive or solid state drive
●System board
10 Working inside your computer

Removing and installing components
NOTE: The images in this document may differ from your computer depending on the configuration you ordered.
Recommended tools
The procedures in this document may require the following tools:
●Phillips screwdriver #0
●Phillips screwdriver #1
●Phillips screwdriver #2
●Torx 8 screwdriver
●Plastic scribe
Screw list
NOTE: When removing screws from a component, it is recommended to note the screw type, the quantity of screws, and
then place them in a screw storage box. This is to ensure that the correct number of screws and correct screw type is
restored when the component is replaced.
NOTE: Some computers have magnetic surfaces. Ensure that the screws are not left attached to such surfaces when
replacing a component.
NOTE: Screw color may vary with the configuration ordered.
Table 1. Screw list
Component Screw type Quantity Screw image
Handle M3.5x15 2
Back-cover assembly M2x3
M2.5x8 (Torx 8)
M2x5
2
19
1
M.2 solid-state drive M2x5
M2x3
1
1
Wireless card M2x3 1
2
Removing and installing components 11

Table 1. Screw list (continued)
Component Screw type Quantity Screw image
WWAN card M2x3 3
I/O daughter-board M2x3
M2x5
2
4
USB/HDMI port M2x3
M2x5
2
1
USB-port assembly M2x3
M2x5
M2.5x4
6
4
Mini-serial RS232 port assembly M2x3
M2x5
4
4
RJ45-port assembly M2x3
M2x5
2
4
Blank top-cover M2x5 4
USB daughter-board M2x3
M1x2.65
2
2
Mini-serial RS232 daughter-
board
M2x3
M1x2.65
2
2
RJ45 daughter-board M1x2.65 2
Decoder daughter-board M1x2.65 2
World-facing camera M2x3 5
12 Removing and installing components

Table 1. Screw list (continued)
Component Screw type Quantity Screw image
Heat sink M2x3 4
USB/HDMI door M2x2 2
Scanner assembly M2x5 4
Front camera and microphone
assembly
M2x3 2
Fan with SSD heat-sink
assembly M2x5
M2x2
2
3
Docking-FPC bracket M2x3 2
USB Type-c bracket M2x5 3
SSD release-latch holder M2x5 1
System board M2x3 8
Mini-serial RS232 bezel M2x2 1
Mini-serial RS232 FPC Hexagonal standoff nuts 4
Major components of Latitude 7230 Rugged Extreme
Tablet
The following image shows the major components of Latitude 7230 Rugged Extreme Tablet.
Removing and installing components 13

1. Battery 2. SSD door
3. Solid-state drive 4. Back-cover assembly
5. Fan and SSD heat-sink assembly 6. Heat sink
7. System board 8. Display-panel assembly
9. HDMI/USB port 10. I/O daughter-board
14 Removing and installing components

11. Coin-cell battery 12. Front camera and microphone assembly
13. World-facing camera 14. Wireless card
15. WWAN card 16. RJ45 daughter-board
17. RJ45-port assembly 18. Blank top-cover
19. Battery
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.
Batteries
Lithium-ion battery precautions
CAUTION:
●Exercise caution when handling Lithium-ion batteries.
●Discharge the battery completely before removing it. Disconnect the AC power adapter from the system and
operate the computer solely on battery power—the battery is fully discharged when the computer no longer
turns on when the power button is pressed.
●Do not crush, drop, mutilate, or penetrate the battery with foreign objects.
●Do not expose the battery to high temperatures, or disassemble battery packs and cells.
●Do not apply pressure to the surface of the battery.
●Do not bend the battery.
●Do not use tools of any kind to pry on or against the battery.
●Ensure any screws during the servicing of this product are not lost or misplaced, to prevent accidental
puncture or damage to the battery and other system components.
●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.
●Swollen batteries should not be used and should be replaced and disposed properly. For guidelines on how to
handle and replace swollen Lithium-ion batteries, see Handling swollen Lithium-ion batteries.
Removing the batteries
Prerequisites
1. Follow the procedure in before working inside your tablet.
NOTE: This tablet can accommodate two hot-swap capable batteries (Primary and optional). The removal procedure of the
primary and optional battery are identical.
About this task
The figure indicates the location of the batteries and provides a visual representation of the removal procedure.
Removing and installing components 15

Steps
1. Slide the battery release latch to the unlock position.
2. Slide the latch down to unlock the battery.
3. Lift the battery out of the battery bay.
4. Remove the battery from the tablet.
Installing the batteries
Prerequisites
If you are replacing a component, remove the existing component before performing the installation procedure.
About this task
NOTE: This tablet can accommodate two hot-swap capable batteries (Primary and optional). The installation procedure of
the primary and optional battery are identical.
The figure indicates the location of the battery and provides a visual representation of the installation procedure.
16 Removing and installing components

Steps
1. Align the pins on the battery with the connector on the tablet.
NOTE: Ensure that the metal pin of the battery is aligned in place.
2. Place the battery into the battery bay until it clicks into place.
3. Slide the battery latch to the locked state.
4. Ensure that the battery release latch is in the locked state.
Next steps
1. Follow the procedure in after working inside your tablet.
Subscriber Identification Module (SIM) card
Removing the uSIM
Prerequisites
1. Follow the procedure in before working inside your tablet.
2. Remove the batteries.
Removing and installing components 17

About this task
The figure indicates the location of the uSIM and provides a visual representation of the removal procedure.
Steps
1. Open the uSIM slot cap.
2. Press the uSIM card, and slide it out of the slot.
NOTE: Use a flat pointed scribe to ease removing the SIM.
Inserting the uSIM
Prerequisites
If you are replacing a component, remove the existing component before performing the installation procedure.
About this task
The figure indicates the location of the uSIM and provides a visual representation of the installation procedure.
18 Removing and installing components

Steps
1. Insert the uSIM card in the slot until it is locked.
2. Close the uSIM slot cap to initial state.
Next steps
1. Install the batteries.
2. Follow the procedure in after working inside your tablet.
Stylus
Removing the stylus
Prerequisites
1. Follow the procedure in before working inside your tablet.
About this task
The figure indicates the location of the stylus and provides a visual representation of the removal procedure.
Removing and installing components 19

Steps
1. Slide the stylus upward using the groove on the stylus pen.
NOTE: Avoid pulling the stylus with the stretchable thread.
2. Loosen the knot and slip the stylus through the hole to remove the tether from the chassis.
Installing the stylus
Prerequisites
If you are replacing a component, remove the existing component before performing the installation procedure.
About this task
The figure indicates the location of the stylus and provides a visual representation of the installation procedure.
20 Removing and installing components