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.
Lift the base cover off the palm rest assembly.
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 10 seconds to ground the system and remove residual static electricity.
WWAN (Wireless Module)
Identify the wireless module (WWAN) highlighted in blue.
Lift the WWAN card shield off the WWAN card.
Remove the screw that secures the WWAN card bracket.
Remove the bracket that secures the WWAN antenna cables.
Disconnect the antenna cables from the WWAN.
Remove the WWAN card from the connector on the system board.
Heatsink
Identify the heatsink assembly highlighted in blue.
Unroute the antenna cables from the routing guides on the heat sink (optonal).
Loosen the captive screws that secure the heatsink. Loosen in reverse sequential order.
Lift the heat sink off the system board.
Use the alcohol pad to clean the heatsink (as shown in the video).
Install
Heatsink
Identify the heatsink assembly location highlighted in blue.
Apply a pea sized amount of thermal material as shown.
Install the heatsink assembly into the slot on the system board.
Tighten the captive screws that secure the heat sink. Tighten in order.
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 antenna cables.
Install the screw to secure the WWAN card bracket.
Align and place the WWAN card shield over the 4G WWAN card.
Battery Cable
Identify the battery cable location highlighted in blue.
Connect the battery cable to 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.