Step 10
Remove the orange tape securing the trackpad ribbon to the logic board.
Disconnect the trackpad ribbon from the logic board.
Remove the upper case from the computer.
Step 11 — Right Ambient Light Sensor
Remove the large silver Phillips screw from the top of the right ambient light sensor board.
Remove the smaller black Phillips screw from the bottom of the board.
Step 12
Lift the right ambient light sensor board from the computer.