Dell XPS 12 (9Q23, Late 2012) - Manual (Page 15)

Removing the Wireless Mini-Card
WARNING: Before working inside your computer, read the safety information
that shipped with your computer and follow the steps in "Before You Begin" on
page 7. After working inside your computer, follow the instructions in
"After Working Inside Your Computer" on page 9. For additional safety best
practices information, see the Regulatory Compliance Homepage at
dell.com/regulatory_compliance.
If you ordered a wireless mini-card with your computer, the card is already installed.
Prerequisites
1 Remove the base cover. See "Removing the Base Cover" on page 10.
2 Remove the battery. See "Removing the Battery" on page 13.
Procedure
1 Disconnect the antenna cables from connectors on the wireless mini-card.
2 Remove the screw that secures the wireless mini-card to the wireless mini-card
connector.
3 Lift the wireless mini-card out of the wireless mini-card connector.
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Removing the Wireless Mini-Card | 15