Dell Inspiron 20 (3048, Early 2014) - Manual (Page 56)

Removing 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 . After working inside your
computer, follow the instructions in After Working Inside Your
Computer . For more safety best practices, see the Regulatory
Compliance home page at dell.com/regulatory_compliance.
Prerequisites
1 Follow the procedure from step 1 to step 5 in “Removing the Stand
Assembly ”.
2 Remove the back cover .
3 Remove the system-board shield .
Procedure
1 Disconnect the antenna cables from the wireless card.
2 Remove the screw that secures the wireless card to the system board.
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