HP Compaq CQ58 Maintenance And Service Manual page 71

4. Remove the Phillips PM2.0×3.0 screw from the optical drive bay (1) and the three Phillips PM2.5×4.0
screws from the hard drive bay (2) that secure the top cover to the computer.
5. Turn the computer right-side up with the front toward you, and then open the computer.
6. Release the ZIF connectors to the power button board cable (1) and the TouchPad button board cable
(2), and then disconnect the cables from the system board.
ENWW Component replacement procedures 63