iFixit

There is a magnet that allows the computer to detect when the laptop is closed. If this magnet is not present your computer will not automatically go to sleep. Be sure the magnet is in the position indicated.

Your laptop should look approximately like this.

Remove the following 14 screws (some models may be missing a couple of screws):

• One 2.5 mm Phillips.
• Six 3.5 mm Phillips.
• One 4.5 mm Phillips near the sleep light with a small shaft.
• Two 4.5 mm Phillips with larger shafts.
• Four 5 mm Phillips
• If a screw is inserted in the left hole, the 14.2 mm screw in step 24 can not be inserted to hold the top case down.

Peel back three strips of yellow tape in the bottom left corner.

Peel back one strip of foil tape in the upper left corner and another near where the trackpad connects to the logic board.

Lift the top shield up from the right side, minding the upper left corner, which may catch on the metal framework.