Remove the following 13 screws securing the logic board to the rear case:

Six 7.2 mm coarse-thread T10 Torx.

Two 6.8 mm T8 Torx. When reinstalling these two screws, don't overtighten them, as the plastic tabs they hold down are thin and brittle, and can crack.

Three 7 mm fine-thread T10 Torx.

Two 24 mm T10 Torx.