Removal
Base Cover
Identify the base cover highlighted in blue.
Loosen the captive screws that secure the base cover to the system base.
Using a plastic scribe or a flat head screwdriver, pry the base cover from the edges.
Lift the base cover off the system base.
Battery Cable
Identify the battery cable highlighted in blue.
Disconnect the battery cable from the system board.
Press and hold the power button for 10 seconds to ground the system and remove residual static electricity.
Wireless Module (WWAN)
Identify the wireless module (WWAN) highlighted in blue.
Remove the screw that secures the WWAN card bracket to the system board.
Remove the bracket that secures the WWAN antenna cables.
Using a plastic scribe or a flat head screwdriver, gently disconnect the cables from the connectors on the WWAN card.
Remove the WWAN card from the connector on the system board.
Install
Wireless Module (WWAN)
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.
Install the screw to secure the WWAN.
Battery Cable
Identify the battery cable highlighted in blue.
Route the battery cable through the routing clip and connect the battery cable to the connector on the system board.
Base Cover
Identify the base cover location highlighted in blue.
Align the base cover tabs to the slots on the edges, press the edges of the cover until it clicks into place.
Tighten the captive screws that secures the base cover to the system base.