Dell P25T - Removing the I;O Board; Prerequisites; Procedure

3 Open the latches and disconnect the I/O-board cable, and power and volume-
buttons board cable from the I/O board.
1 sensor-board cable 2 tape
3 I/O-board cable 4 latch
5 I/O board 6 power and volume-buttons
board cable
4 Remove the screws that secure the I/O board to the palmrest and keyboard
assembly.
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