Dell XPS 12 (9Q33, Mid 2013) - Manual (Page 16)

Replacing the Wireless Card
WARNING: Before working inside your computer, read the safety information
that shipped with your computer and follow the steps in "Before Working Inside
Your Computer" on page 7. After working inside your computer, follow the
instructions in "After Working Inside Your Computer" on page 9.
For more safety best practices, see the Regulatory Compliance home page at
dell.com/regulatory_compliance.
Procedure
CAUTION: To avoid damage to the wireless card, do not place any cables under it.
1 Align the notch on the wireless card with the tab on the wireless-card connector.
2 Insert the wireless card into the wireless-card connector and replace the screw
that secures the wireless card to the system board.
3 Connect the antenna cables to the wireless card.
NOTE: The color of the antenna cables is visible near the tip of the cables.
The following table provides the antenna-cable color scheme for the wireless card
supported by your computer.
Connectors on the wireless card Antenna-cable color
Main (white triangle) white
Auxiliary (black triangle) black
4 Adhere the Mylar and conductive tape on the antenna cables.
Postrequisites
1 Replace the battery. See "Replacing the Battery" on page 14.
2 Replace the base cover. See "Replacing the Base Cover" on page 12.
16 | Replacing the Wireless Card