iFixit

The cable you're about to remove is very fragile - do not pull directly on the wires. Instead, try to pry up the connector directly, using a spudger or a small flathead screwdriver if necessary.

Disconnect the microphone cable at the front of the computer, between the left side of the hard drive and the metal framework.

Use the black plastic handle to disconnect the display data cable from the logic board.

This is a diagram of the 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.

Release the optical drive ribbon clamp as described above. Slide the optical drive ribbon out of its connector.

Close the display and flip the computer over.

Remove the following 12 screws:

• Nine 3 mm Phillips.
• One 3 mm Phillips with a thicker shaft at the bottom right corner of the logic board, next to the fan.
• Two 7.5 mm Phillips on either side of the battery connector.

Disconnect the inverter, fan, and sleep light cables from the logic board.

When replacing the logic board, make sure that the inverter cable is not pinned under the logic board.

Lift the logic board carefully from the computer.

Mind the thin metal EMI fingers surrounding the ports when replacing the logic board.