iFixit

Turn over the computer and open it.

Use tweezers (or a refrigerator magnet) to remove the magnet covering a Phillips screw near the middle of the computer.

Remove the following 4 screws on the edges of the keyboard area.

• One 4.5 mm Phillips underneath where the magnet was.
• Three 6 mm Phillips in plastic depressions.

Peel up the foil tape covering the speaker cable near the ports.

This is a diagram of the trackpad ribbon clamp connector you will disconnect in the next step.

1) With your fingernails, grasp the locking bar on either side and pull up a small amount (about 1/16" or 2 mm).

2) After disengaging the locking bar, slide the cable out of the connector.

Loosen the trackpad connector by pulling the top piece up slightly, freeing the trackpad ribbon.

Slide the orange trackpad ribbon out of the connector.

Before you can yank the upper case off with joy, you must disconnect both the blue and white power cable and red and black speaker cable as described in the next steps.

Lift the upper case from the left side and use your other hand to pull out the right side in order to clear the power receptacle.

There may be a thin metal bar fastened to the upper case by the two screws on either side of the optical drive. This bar provides rigidity around the optical drive; don't forget it when reassembling.

The connectors at the ends of the cables are attached very firmly to the sockets on the logic board. Pulling directly on the cable will either separate the cable from its connector or the socket from the logic board.

Lift the upper case enough to disconnect the blue and white power cable from the logic board. Using your fingernails or a dental pick, carefully pry the connector from its socket. Make sure you're pulling only on the connector and not on the socket.

Lift the upper case off completely and disconnect the red and black speaker cable from the logic board. As before, make sure you're pulling only on the connector and not on the socket.