Step 52 — Logic Board
Remove the following 9 screws:
Two 3 mm Phillips from the edge of the logic board, near the battery
Two 4 mm large head Phillips on the port side, from either corner.
One 6 mm Phillips near the sleep light.
Two 7.5 mm Phillips securing the battery connector to the metal framework.
Two 5 mm Phillips from the logic board. These screws may not be present on some models.
There will be two screws remaining that secure the airport card cage to the logic board (can't get them all).
Step 53
Disconnect the sleep light from the logic board.
Step 54
Disconnect the DC cable from the logic board.