Step 13
This is a diagram of the keyboard 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.
Step 14
Loosen the keyboard ribbon clamp by pushing the thin black piece toward the screen, using the tips of your fingers.
Slide the grey keyboard ribbon out of the loosened connector.
Remove the upper case from the computer.
Step 15 — Logic Board
If you have already removed the display or hard drive, you may have already removed some of the cables described in this step. You may also ignore their presence in the following images; they do not further affect the disassembly procedure.
Disconnect the indicated 13 cables from the logic board, starting in one place and moving around the board.