Dell XPS 13 (L322X, Early 2013) - Manual (Page 40)

Removing the I/O Board
1 Remove the screw that secures the I/O board to the palm-rest assembly.
2 Lift the I/O board off the palm-rest assembly.
2 1
1 I/O board 2 screw
Replacing the I/O Board
1 Align the screw holes on the I/O board with the screw holes on the
palm-rest assembly.
2 Replace the screw that secure the I/O board to the palm-rest assembly.
I/O Board 40