Dell Latitude XT3 (Mid 2011) - Manual (Page 80)

9. Remove the screws that secure the WLAN switch board to the computer.
10. Remove the WLAN switch board from the computer.
Installing the WLAN Switch Board
1. Place the WLAN switch board in the compartment.
2. Tighten the screws to secure the WLAN switch board.
3. Connect the WLAN switch board flex cable to the system board.
4. Replace the palmrest.
5. Replace the base cover.
6. Replace the hard drive assembly.
7. Replace the keyboard.
8. Replace the keyboard trim.
9. Replace the back panel.
10. Follow the procedures in After Working Inside Your Computer.
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