Dell XPS 13 (L322X, Early 2013) - Manual (Page 26)

Postrequisites
1 Replace the right speaker. See "Replacing the Speakers" on page 22.
1 Replace the battery. See "Replacing the Battery" on page 18.
2 Replace the power-light board. See "Replacing the Power-Light Board" on
page 16.
3 Replace the base cover. See "Replacing the Base Cover" on page 14.
4 Follow the instructions in "After Working Inside Your Computer" on page 11.
Wireless Mini-Card 26