Removal
Base Cover
Identify the base cover highlighted in blue.
Loosen the captive screws that secure the base cover to the computer.
Pry open the base cover starting from the bottom right corner of the base cover.
Lift the base cover starting from the bottom edge and push it towards the rear to remove it from the system.
WLAN Card
Identify the wireless module (WLAN) highlighted in blue.
Loosen the screw that secures the WLAN card bracket to the system board.
Remove the WLAN card bracket away from the WLAN card.
Disconnect the antenna cables from the WLAN.
Slide and remove the WLAN card from the connector on the system board.
Install
WLAN Card
Identify the wireless module (WLAN) location highlighted in blue.
Insert the WLAN card into the connector on the system board.
Connect the black cable to the auxiliary (black triangle).
Connect the white cable to the main (white triangle).
Install the bracket to secure the WLAN antenna cables.
Tighten the screw that secures the WLAN card bracket to the system board.
Base Cover
Identify the base cover location highlighted in blue.
Slide the base cover into its slot until it clicks into place.
Tighten the captive screws to secure the base cover to the computer.