Dell Latitude 12-7275, Owner'S Manual, Page: 35 / 65

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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. You must enter the Service Tag in the
BIOS setup program after you replace the system board.
NOTE: Replacing the system board removes any changes you have made to the BIOS using the
BIOS setup program. You must make the desired changes again after you replace the system board.
NOTE: Before disconnecting the cables from the system board, note the location of the connectors
so that you can reconnect the cables correctly after you replace the system board.
Prerequisites
1. Remove the battery .
2. Remove the solid-state drive .
3. Remove the wireless card .
Procedure
1. Disconnect the speaker cables, camera cables, microphone cable, and coin-cell battery cable from
the system board.
2. Lift the latches and disconnect the headset-port cable, power-button board cable and display cable
from the system board.
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