Dell XPS 15 (L502X, Early 2011) - Manual (Page 45)

Keyboard 45
CAUTION: The keycaps on the keyboard are fragile, easily dislodged, and
time-consuming to replace. Be careful when removing and handling the keyboard.
CAUTION: Be extremely careful when removing and handling the keyboard.
Failure to do so could result in scratching the display panel.
7 Turn the keyboard over and place it over the top cover as shown in the
following illustration.
8 Lift the connector latch and disconnect the keyboard cable from the
system-board connector.
9 Lift the keyboard off the top cover.
Replacing the Keyboard
1 Follow the instructions in "Before You Begin" on page 9.
2 Slide the keyboard cable into the system-board connector and press down
on the connector latch to secure the cable.
1 keyboard tabs (5) 2 keyboard backlight cable connector
1 top cover 2 keyboard
3 keyboard cable connector
3
2
1