XPS 12 Service Manual Computer Model: XPS 12 9250 Regulatory Model: T02H Regulatory Type: T02H001
Notes, cautions, and warnings NOTE: A NOTE indicates important information that helps you make better use of your tablet. 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. Copyright © 2015 Dell Inc. All rights reserved. This product is protected by U.S. and international copyright and intellectual property laws.
Contents Before working inside your tablet............................................ 7 Before you begin ...............................................................................................7 Safety instructions.............................................................................................. 7 Recommended tools......................................................................................... 8 After working inside your tablet...............................................
Removing the front camera.....................................................21 Prerequisites..................................................................................................... 21 Procedure......................................................................................................... 21 Replacing the front camera.....................................................23 Procedure.......................................................................................................
Removing the microphone......................................................33 Prerequisites.....................................................................................................33 Procedure.........................................................................................................33 Replacing the microphone...................................................... 35 Procedure.........................................................................................................
Removing the back cover........................................................ 47 Prerequisites.....................................................................................................47 Procedure.........................................................................................................47 Replacing the back cover........................................................ 49 Procedure.....................................................................................................
Before working inside your tablet NOTE: The images in this document may differ from your tablet depending on the configuration you ordered. Before you begin 1 Save and close all open files and exit all open applications. 2 Shut down your tablet. – Windows 10: Click or tap Start → Power → Shut down. – Windows 7: Click or tap Start → Shut down. NOTE: If you are using a different operating system, see the documentation of your operating system for shut-down instructions.
WARNING: Disconnect all power sources before opening the tablet cover or panels. After you finish working inside the tablet, replace all covers, panels, and screws before connecting to the power source. CAUTION: To avoid damaging the tablet, ensure that the work surface is flat and clean. CAUTION: To avoid damaging the components and cards, handle them by their edges and avoid touching pins and contacts.
After working inside your tablet CAUTION: Leaving stray or loose screws inside your tablet may severely damage your tablet. 1 Replace all screws and ensure that no stray screws remain inside your tablet. 2 Connect any external devices, peripherals, and cables you removed before working on your tablet. 3 Replace any media cards, discs, and any other parts that you removed before working on your tablet. 4 Connect your tablet and all attached devices to their electrical outlets. 5 Turn on your tablet.
Removing the battery WARNING: Before working inside your tablet, read the safety information that shipped with your tablet and follow the steps in Before working inside your tablet. After working inside your tablet, follow the instructions in After working inside your tablet. For more safety best practices, see the Regulatory Compliance home page at www.dell.com/regulatory_compliance.
3 Using a plastic scribe, pry up along the edges of the back-cover assembly.
4 Carefully, lift the back-cover assembly and turn it over. 1 back-cover assembly 5 Remove the screws that secure the battery to the back-cover assembly. 6 Disconnect the battery cable from the system board.
7 Lift the battery, along with its cable, off the back-cover assembly.
Replacing the battery WARNING: Before working inside your tablet, read the safety information that shipped with your tablet and follow the steps in Before working inside your tablet. After working inside your tablet, follow the instructions in After working inside your tablet. For more safety best practices, see the Regulatory Compliance home page at www.dell.com/regulatory_compliance. Procedure 1 Align the screw holes on the battery with the screw holes on the backcover assembly.
Removing the solid-state drive WARNING: Before working inside your tablet, read the safety information that shipped with your tablet and follow the steps in Before working inside your tablet. After working inside your tablet, follow the instructions in After working inside your tablet. For more safety best practices, see the Regulatory Compliance home page at www.dell.com/regulatory_compliance. CAUTION: Solid-state drives are fragile. Exercise care when handling the hard drive.
2 16 Lift and slide the solid-state drive off the back-cover assembly.
Replacing the solid-state drive WARNING: Before working inside your tablet, read the safety information that shipped with your tablet and follow the steps in Before working inside your tablet. After working inside your tablet, follow the instructions in After working inside your tablet. For more safety best practices, see the Regulatory Compliance home page at www.dell.com/regulatory_compliance. CAUTION: Solid-state drives are fragile. Exercise care when handling the hard drive.
Removing the wireless card WARNING: Before working inside your tablet, read the safety information that shipped with your tablet and follow the steps in Before working inside your tablet. After working inside your tablet, follow the instructions in After working inside your tablet. For more safety best practices, see the Regulatory Compliance home page at www.dell.com/regulatory_compliance. Prerequisites Remove the battery.
4 Slide and remove the wireless card from the wireless-card slot.
Replacing the wireless card WARNING: Before working inside your tablet, read the safety information that shipped with your tablet and follow the steps in Before working inside your tablet. After working inside your tablet, follow the instructions in After working inside your tablet. For more safety best practices, see the Regulatory Compliance home page at www.dell.com/regulatory_compliance. Procedure CAUTION: To avoid damage to the wireless mini-card, do not place any cables under it.
Removing the front camera WARNING: Before working inside your tablet, read the safety information that shipped with your tablet and follow the steps in Before working inside your tablet. After working inside your tablet, follow the instructions in After working inside your tablet. For more safety best practices, see the Regulatory Compliance home page at www.dell.com/regulatory_compliance. Prerequisites Remove the battery.
3 22 Lift the front camera, along with its cable, off the back-cover assembly.
Replacing the front camera WARNING: Before working inside your tablet, read the safety information that shipped with your tablet and follow the steps in Before working inside your tablet. After working inside your tablet, follow the instructions in After working inside your tablet. For more safety best practices, see the Regulatory Compliance home page at www.dell.com/regulatory_compliance. Procedure 1 Align the screw hole on the front camera with the screw hole on the back-cover assembly.
Removing the back camera WARNING: Before working inside your tablet, read the safety information that shipped with your tablet and follow the steps in Before working inside your tablet. After working inside your tablet, follow the instructions in After working inside your tablet. For more safety best practices, see the Regulatory Compliance home page at www.dell.com/regulatory_compliance. Prerequisites Remove the battery.
3 Lift the back camera, along with its cable, off the back-cover assembly.
Replacing the back camera WARNING: Before working inside your tablet, read the safety information that shipped with your tablet and follow the steps in Before working inside your tablet. After working inside your tablet, follow the instructions in After working inside your tablet. For more safety best practices, see the Regulatory Compliance home page at www.dell.com/regulatory_compliance. Procedure 1 Align the screw hole on the back camera with the screw hole on the back-cover assembly.
Removing the coin-cell battery WARNING: Before working inside your tablet, read the safety information that shipped with your tablet and follow the steps in Before working inside your tablet. After working inside your tablet, follow the instructions in After working inside your tablet. For more safety best practices, see the Regulatory Compliance home page at www.dell.com/regulatory_compliance. CAUTION: Removing the coin-cell battery resets the BIOS setup program’s settings to default.
3 28 Peel the coin-cell battery off the back-cover assembly.
Replacing the coin-cell battery WARNING: Before working inside your tablet, read the safety information that shipped with your tablet and follow the steps in Before working inside your tablet. After working inside your tablet, follow the instructions in After working inside your tablet. For more safety best practices, see the Regulatory Compliance home page at www.dell.com/regulatory_compliance. Procedure 1 Adhere the coin-cell battery to the back-cover assembly.
Removing the headset port WARNING: Before working inside your tablet, read the safety information that shipped with your tablet and follow the steps in Before working inside your tablet. After working inside your tablet, follow the instructions in After working inside your tablet. For more safety best practices, see the Regulatory Compliance home page at www.dell.com/regulatory_compliance. Prerequisites Remove the battery.
4 Lift the headset port, along with its cable, off the back-cover assembly.
Replacing the headset port WARNING: Before working inside your tablet, read the safety information that shipped with your tablet and follow the steps in Before working inside your tablet. After working inside your tablet, follow the instructions in After working inside your tablet. For more safety best practices, see the Regulatory Compliance home page at www.dell.com/regulatory_compliance.
Removing the microphone WARNING: Before working inside your tablet, read the safety information that shipped with your tablet and follow the steps in Before working inside your tablet. After working inside your tablet, follow the instructions in After working inside your tablet. For more safety best practices, see the Regulatory Compliance home page at www.dell.com/regulatory_compliance. Prerequisites 1 Remove the battery. 2 Remove the front camera. 3 Remove the back camera.
2 34 Lift the microphones, along with the cable, off the back-cover assembly.
Replacing the microphone WARNING: Before working inside your tablet, read the safety information that shipped with your tablet and follow the steps in Before working inside your tablet. After working inside your tablet, follow the instructions in After working inside your tablet. For more safety best practices, see the Regulatory Compliance home page at www.dell.com/regulatory_compliance. Procedure 1 Align the microphones on the back-cover assembly and snap them into place.
Removing the power-button board WARNING: Before working inside your tablet, read the safety information that shipped with your tablet and follow the steps in Before working inside your tablet. After working inside your tablet, follow the instructions in After working inside your tablet. For more safety best practices, see the Regulatory Compliance home page at www.dell.com/regulatory_compliance. Prerequisites Remove the battery.
3 Lift the power-button board off the back-cover assembly.
Replacing the power-button board WARNING: Before working inside your tablet, read the safety information that shipped with your tablet and follow the steps in Before working inside your tablet. After working inside your tablet, follow the instructions in After working inside your tablet. For more safety best practices, see the Regulatory Compliance home page at www.dell.com/regulatory_compliance. Procedure 1 Align the screw holes on the power-button board with the screw holes on the back-cover assembly.
Removing the volume-buttons board WARNING: Before working inside your tablet, read the safety information that shipped with your tablet and follow the steps in Before working inside your tablet. After working inside your tablet, follow the instructions in After working inside your tablet. For more safety best practices, see the Regulatory Compliance home page at www.dell.com/regulatory_compliance. Prerequisites Remove the battery.
3 40 Lift the volume-buttons board off the back-cover assembly.
Replacing the volume-buttons board WARNING: Before working inside your tablet, read the safety information that shipped with your tablet and follow the steps in Before working inside your tablet. After working inside your tablet, follow the instructions in After working inside your tablet. For more safety best practices, see the Regulatory Compliance home page at www.dell.com/regulatory_compliance.
Removing the system board WARNING: Before working inside your tablet, read the safety information that shipped with your tablet and follow the steps in Before working inside your tablet. After working inside your tablet, follow the instructions in After working inside your tablet. For more safety best practices, see the Regulatory Compliance home page at www.dell.com/regulatory_compliance. NOTE: Your tablet’s Service Tag is stored in the system board.
2 Lift the latches and disconnect the headset-port cable, power-button board cable and display cable from the system board. 1 vibration-motor cable 2 headset-port cable 3 speaker cable 4 latch 5 volume-buttons board cable 6 microphone cable 7 camera cables (2) 8 coin-cell battery cable 9 power-button board cable 10 speaker cable 11 display cable 12 dock-connector cable 3 Lift the antenna cable off the system board.
5 6 44 Lift the I/O bracket off the system board. 1 screws (2) 2 I/O bracket 3 back-cover assembly 4 antenna cable Remove the screws that secure the system board to the back-cover assembly.
7 Lift the system board off the back-cover assembly.
Replacing the system board WARNING: Before working inside your tablet, read the safety information that shipped with your tablet and follow the steps in Before working inside your tablet. After working inside your tablet, follow the instructions in After working inside your tablet. For more safety best practices, see the Regulatory Compliance home page at www.dell.com/regulatory_compliance. NOTE: Your tablet’s Service Tag is stored in the system board.
Removing the back cover WARNING: Before working inside your tablet, read the safety information that shipped with your tablet and follow the steps in Before working inside your tablet. After working inside your tablet, follow the instructions in After working inside your tablet. For more safety best practices, see the Regulatory Compliance home page at www.dell.com/regulatory_compliance. Prerequisites 1 Remove the battery. 2 Remove the solid-state drive. 3 Remove the wireless card.
1 48 back cover
Replacing the back cover WARNING: Before working inside your tablet, read the safety information that shipped with your tablet and follow the steps in Before working inside your tablet. After working inside your tablet, follow the instructions in After working inside your tablet. For more safety best practices, see the Regulatory Compliance home page at www.dell.com/regulatory_compliance. Procedure Place the back cover on a flat surface.
Removing the display assembly WARNING: Before working inside your tablet, read the safety information that shipped with your tablet and follow the steps in Before working inside your tablet. After working inside your tablet, follow the instructions in After working inside your tablet. For more safety best practices, see the Regulatory Compliance home page at www.dell.com/regulatory_compliance. Prerequisites Remove the battery. Procedure 1 Peel off the display cable from the system board.
4 Lift the display assembly, along with its cable, off the back-cover assembly.
Replacing the display assembly WARNING: Before working inside your tablet, read the safety information that shipped with your tablet and follow the steps in Before working inside your tablet. After working inside your tablet, follow the instructions in After working inside your tablet. For more safety best practices, see the Regulatory Compliance home page at www.dell.com/regulatory_compliance. Procedure 1 Adhere the display cable to the back-cover assembly.
Flashing the BIOS You may need to flash (update) the BIOS when an update is available or when you replace the system board. To flash the BIOS: 1 Turn on the tablet. 2 Go to www.dell.com/support. 3 Click Product Support, enter the Service Tag of your tablet and click Submit. NOTE: If you do not have the Service Tag, use the auto-detect feature or manually browse for your tablet model. 4 Click Drivers & downloads. 5 Select the operating system installed on your tablet.
Getting help and contacting Dell Self-help resources You can get information and help on Dell products and services using these self-help resources: Information about Dell products and services www.dell.com Windows 8.1 and Windows 10 Dell Help & Support app Windows 10 Get started app Windows 8.1 Help + Tips app Accessing help in Windows 8, Windows 8.1, and Windows 10 In Windows search, type Help and Support, and press Enter. Accessing help in Windows 7 Click Start → Help and Support.
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