Labels: DOCUMENTED = taken from HP's manual; PROPOSED = our own joining or ordering of HP's directions, not an HP instruction; UNPERFORMED = a suggested check that has not been carried out.
Applies to
HP ProBook 455 G4. Confirm the exact model on the service label before starting.
HP ProBook 455 G4 Notebook PC top cover replacement. HP prints this procedure on printed page 52 of its maintenance and service guide, and the spare-part table for this part is on printed page 52.
tools and parts
- Flat-bladed drivers, Phillips P0 and P1 drivers and Torx T8 drivers
- Static-safe work surface
preparation
HP prints its tools list and its handling and electrostatic-discharge cautions on printed page 27. Work on a grounded, static-safe surface, keep screws grouped by the position they came from, and handle boards and modules by their edges.
replacement
- Position computer upside-down with the front toward you. (printed page 52).
- Take out the 10 Torx T8 2.5×6.0 screws that hold the top cover to the computer. (printed page 52).
- Take out the 4 Phillips PM2.0×3.0 screws that hold the top cover to the computer. (printed page 52).
- Position notebook upright and open it as far as possible. (printed page 52).
- Take out the 6 Torx T8 2.5×6.0 screws that hold the top cover to the computer. (printed page 53).
- Detach the following cables from the system board: Speaker cable Function board cable Power button board cable (printed page 54).
- Rotate bottom of top cover upward (1), and then lift top cover off the computer (2). (printed page 55).
- Put the top cover back by repeating the printed removal moves in the opposite order (printed page 55).
Part numbers in our catalog
- HP top cover with touchpad assembly (905765-001)
Check each part page for its source and variant notes before ordering.
Manufacturer manual
HP Maintenance and Service Guide (PDF, HP). Machine-readable copy: /api/guides/hp-probook-455-g4-top-cover-replacement