NOTE: System board can be removed with heatsink assembly installed, this simplifies the procedure in an event of power button, keyboard and palmrest assembly replacements.
Disconnect the LED daughterboard ribbon cable from the system board [1].
Unroute the ribbon cable from the rubber routing channel on the coin cell [2].
Disconnect the speaker cable from the system board [3].
Unroute the speaker cable from the rubber routing channel on the coin cell and on the side of LED daughterboard [4].
Peel off the rubber routing channel from the coin cell.
Remove the single (M2x3) screw from the display cable bracket [ 1] and remove it from the system board [2].
Disconnect the camera cable [1] and the display cable [2] connectors from the system board .
Disconnect the touchpad cable connector from the system board [1].
Pry and remove the coin cell battery from the palmrest assembly [2].
Remove the single (M2x4) screw [1] and remove the metal bracket over the WWAN Darwin antennae cable [2].
Disconnect the power button (with finger print reader) cable from the system board [1].
Disconnect the WWAN Darwin antennae cables [2] from the system board.
Remove the two (M2x4) screws [1] and lift up the USB Type-C bracket from the system board [2].
Remove the five (M2x4) screws [1] and remove the system board from the palmrest assembly [2].
NOTE: For models shipped with a fingerprint reader or WWAN antennas, there are three (M2x3) screws securing the system board to the computer.
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