4 -
PowerBook G4 (17-inch) Take Apart

Zero Insertion Force Connectors
Zero insertion force (ZIF) connectors are used in several locations in the computer.
Important:
The locking bar on the ZIF connector is extremely fragile and is not intended to
separate from the connector. When releasing a bar, use extreme care and a restrained
light pressure to move the bar only slightly.
Warning: If a locking bar breaks, you will need to replace the board.

To release the flex cable

Use a flat-blade tool to move the bar on both sides.