Unscrew the motherboard shield at the top of the phone

Note one screw almost hidden by the camera bezel. You will need to pry the bezel to undo this screw.

Be sure to separate the fingerprint sensor from the bezel when lifting the shield away so that the cable does not get damaged.

Lift away the shield and store it safely with the screws

Unplug the battery connector from the motherboard to avoid electrically damaging the phone.