HP Pavilion DV7-4280 Maintenance And Service Manual page 76

4. Lift (1) and release (2) the keyboard until the keyboard connector on the system board is
accessible.
5. Release the zero insertion force (ZIF) connector (1) to which the keyboard cable is connected and
disconnect the cable (2) from the system board.
Reverse this procedure to install the keyboard.
66 Chapter 4 Removal and replacement procedures