How to replace the Middle FrameTop Cover Before you begin: Remove the base cover, I/O frame, bottom shielding, wireless LAN module, and system board. Removal Remove the four 4 mm P1 Phillips-head screws that secure the middle frame to the top cover. Carefully slide the middle frame out of the
top cover and remove. Replacement IMPORTANT: If you are replacing the middle frame, the power button board will need to be removed from the old middle frame and attached to the new middle frame. Align the sides of the middle frame with the sides of the top cover and slide the middle frame into position on the top cover. Replace the four 4 mm P1 Phillips-head screws that secure the middle frame to the top cover.