Use a coin to rotate the battery locking screw 90 degrees clockwise. /Guide/Repair/iBook-G4-12-Inch-800-MHz-1-2-GHz-AirPort-Extreme-Card/154/all#s522 Lift the battery out of the computer. /Guide/Repair/iBook-G4-12-Inch-800-MHz-1-2-GHz-AirPort-Extreme-Card/154/all#s523 Pull the keyboard release tabs toward you and lift up on the keyboard until it pops free. If the keyboard does not come free, use a small flathead screwdriver to turn the keyboard locking screw 180 degrees in either direction and try again. Flip the keyboard over, away from the screen, and rest it face-down on the trackpad area. /Guide/Repair/iBook-G4-12-Inch-800-MHz-1-2-GHz-AirPort-Extreme-Card/154/all#s524 Push the wire clasp away from the AirPort card and toward the display, then rotate up to free it from the RAM shield. /Guide/Repair/iBook-G4-12-Inch-800-MHz-1-2-GHz-AirPort-Extreme-Card/154/all#s525 Grasp the clear plastic tab on the AirPort card and pull toward the display. /Guide/Repair/iBook-G4-12-Inch-800-MHz-1-2-GHz-AirPort-Extreme-Card/154/all#s526 Hold the Airport card in one hand and use your other hand to remove the antenna cable. /Guide/Repair/iBook-G4-12-Inch-800-MHz-1-2-GHz-AirPort-Extreme-Card/154/all#s527