Removal
Base Cover
Identify the base cover highlighted in blue.
Loosen the captive screws that secure the base cover.
Pry the base cover near the hinges to release it from the system. Do not slide it along the back.
Remove the base cover by loosening the sides and front.
WWAN - Wireless Module
Identify the wireless module (WWAN) highlighted in blue.
Using a plastic scribe, pry from the top left corner to remove the WWAN shield.
Loosen the screw that secures the WWAN card bracket.
Remove the bracket that secures the WWAN antenna cables.
Using a plastic scribe, disconnect the antenna cables from the WWAN.
Slide to remove the WWAN card from the connector on the system board.
Install
WWAN - Wireless Module
Identify the wireless module (WWAN) location highlighted in blue.
Insert the WWAN 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 WWAN antenna cables.
Tighten the screw that secures the WWAN card bracket to the system board.
Install the WWAN shield by inserting the edges into the clips on the system board.
Base Cover
Identify the base cover location highlighted in blue.
Align the base cover tabs to the slots, press the cover until it clicks into place.
Tighten the captive screws that secure the base cover to the system.