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 from the smart card reader slot at the bottom right side of the base cover.
Lift the base cover starting from the bottom edge and push it towards the rear to remove it from the computer.
Battery Cable
Identify the battery cable highlighted in blue.
Using the pull tab, lift up to disconnect the battery cable from the system board.
Press and hold the power button for 20 seconds to ground the system and remove residual static electricity.
WLAN (Wireless Module)
Identify the wireless module (WLAN) highlighted in blue.
Remove 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 at an angle and remove the WLAN card from the connector on the system board.
Install
WLAN (Wireless Module)
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.
Install the screw to secure the WLAN card bracket to the system board.
Battery Cable
Identify the battery cable location highlighted in blue.
Connect the battery cable to the connector on 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.