Remove the following 10 screws from the bottom case:

Three 1.7 mm Phillips from the front edge of the battery compartment.

One 3.9 mm T8 Torx to the right of the memory card.

One 6.9 mm T8 Torx at the left edge of the memory compartment.

Three 12.4 mm fully threaded Phillips from the center of the row of screws along the back edge of the case.

Two 15.1 mm 2.5 mm threaded Phillips, one from either end of the row of screws along the back edge of the case.