Dell Precision 3431 Small Form Factor Service Manual

Removing the M.2 2230 WLAN card

1. Follow the procedure in Before working inside your computer.
2. Remove the:
   1. Side cover
   2. Front bezel
   3. Hard drive and optical drive module
3. To remove the M.2 2230 WLAN card:
   1. Remove the screw (M2) that secures the WLAN card bracket and the WLAN card to the system board [1].
   2. Slide and lift the WLANs card bracket off the WLAN card [2].
   3. Disconnect the antenna cables from the WLAN card [3].
   4. Slide and remove the WLAN card out of the WLAN card slot [4].