Unfasten the four screws securing the logic board:

One 1.7 mm-long Phillips screw

One partially threaded 1.7 mm-long Phillips screw

This screw is covered by protective foam surrounding the rear camera connector. Use a pair of tweezers to peel just enough foam off to unfasten the screw.

One 2.5 mm-long standoff screw

One 2.2 mm-long standoff screw