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. Pry from recess points near the hinges.
Loosen the base covery by working on the left, right and, bottom sides to open the base cover.
Lift to remove the base cover.
Battery Cable
Identify the battery cable highlighted in blue.
Using the pull tab, 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)
IO Board
Identify the I/O board highlighted in blue. Procedure stays will vary depending on your configuration.
Remove the SIM card tray.
Remove the darwin antenna cable bracket from the system.
Disconnect the antenna cables from the connectors on the I/O daughter board.
Unroute the two darwin antenna cables and green P sensor cable from the routing guide.
Remove the screw that secures the fingerprint reader bracket to palm rest assembly.
Remove the fingerprint reader bracket from the system.
Disconnect the fingerprint reader cable from the I/O daughter board.
Disconnect the speaker cable from the I/O daughter board.
Remove the screws that secure the bridge connector board. Remove in order.
Remove the bridge connector board from the system.
Remove the screws that secure the I/O daughter board to palm rest assembly.
Peel the WWAN thermal pad affixed to the WWAN card compartment.
Use a plastic scribe to lift the I/O daughter board out of its compartment from the gap in its top side and remove it from the computer.
Power Button
Install
Power Button
IO Board
Identify the I/O board location highlighted in blue.
Install the I/O daughter board in the slot and align the screw holes.
Adhere the WWAN thermal pad affixed to the WWAN card compartment.
Install the screws that secure the I/O daughter board to palm rest assembly.
Install the bridge connector board to the I/O board and system board.
Install the screws that secure the bridge connector board. Install in order.
Connect the speaker cable to the I/O daughter board.
Connect the fingerprint reader cable to the I/O daughter board.
Install the fingerprint reader bracket and align the screw hole.
Install the screw that secures the fingerprint reader bracket to palm rest assembly.
Route the two darwin antenna cables and green P sensor cable to the routing guide.
Connect the antenna cables to the connectors.
Install the darwin antenna cable bracket and align the screw hole.
Install the screw that secures the drawin antenna cable bracket.
Install the SIM card tray.
Wireless Module (WWAN)
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.
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.