Dell XPS 15 Service Manual page 62

Figure 26. Peeling the Mylar
1 fingerprint-reader cable
3 Open the latches and disconnect the keyboard cable and keyboard-backlight cable from the keyboard-controls board.
4 Lift up the Mylar to access the screws that secure the keyboard to the palm-rest assembly.
NOTE: All new keyboards will be shipped with the Mylar. Do not peel off the
Mylar.
Figure 27. Disconnecting the keyboard and keyboard-backlight cable
1 Mylar
3 latches (2)
5 Remove the 31 screws (M1.6x1.5) that secure the keyboard to the palm-rest assembly.
6 Lift the keyboard off the palm-rest assembly.
62 Removing the keyboard
2 tape
2 keyboard cable
4 keyboard-backlight cable