Dell XPS 14 (L421X, Mid 2012) - Manual (Page 34)

Removing the mSATA/WWAN 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 9. After working inside your computer, follow the instructions
in "After Working Inside Your Computer" on page 11. For additional safety
best practices information, see the Regulatory Compliance Homepage at
dell.com/regulatory_compliance.
Prerequisites
1 Follow the instructions from step 1 to step 7 in "Removing the Base Cover" on
page 12.
2 Remove the speakers. See "Removing the Speakers" on page 22.
3 Remove the battery. See "Removing the Battery" on page 25.
Procedure
1 Peel the mylar from the mSATA/WWAN card.
2 If your computer has a WWAN card, disconnect the antenna cables from the
WWAN card.
3 Remove the screw that secures the mSATA/WWAN card to the palm-rest assembly.
4 Slide and remove the mSATA/WWAN card from the I/O board.
1
2
3
1 screw 2 mSATA/WWAN card
3 mSATA/WWAN-card connector
34 | Removing the mSATA/WWAN Mini-Card