Dell XPS 15 (L501X, Late 2010) - Manual (Page 63)

Camera Module 63
8 Replace the palm-rest assembly (see "Replacing the Palm-Rest Assembly"
on page 32).
9 Replace the memory module(s) (see "Replacing the Memory Module(s)"
on page 18).
10 Replace the module cover (see "Replacing the Module Cover" on page 16).
11 Replace the battery (see "Replacing the Battery" on page 14).
CAUTION: Before turning on the computer, replace all screws and ensure that no
stray screws remain inside the computer. Failure to do so may result in damage to
the computer.