HP 245 G4 Maintenance And Service Manual page 65

7. Position the computer upright, and then disconnect the following cables from the system board:
(1): Keyboard cable
(2): Power connector cable
(3): Power button board cable
(4): Speaker cable
(5): Touchpad button board cable
(6): USB board cable
8. Remove the four Phillips PM2.5×3.5 screws (1) that secure the system board to the computer.
Component replacement procedures 57