Source: steps rewritten in our own words (no more than 8 words in a row copied; part numbers, screw sizes and warnings kept as printed) from HP's Maintenance and Service Guide (PDF, printed pages 50). Not bench-tested. We have not performed this repair; keep HP's manual open for its illustrations. Scope restrictions below are part of the guide: do not apply it to other models, generations or configurations. Service manuals are written for trained technicians; work at your own risk.
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 G9. Confirm the exact model on the service label before starting.
HP ProBook 455 G9 touchpad replacement. HP prints this procedure on printed page 50 of its maintenance and service guide.
Tools and parts
- Screwdrivers and a non-marking pry tool as HP lists for this procedure
- Static-safe work surface
M21999-001- Touchpad. Source: printed page 50.N01915-001- Touchpad cable (included in Cable Kit). Source: printed page 50.
Preparation
Save your work, shut the computer down through the operating system, unplug AC power and every external device, and work on a grounded, static-safe surface.
Replacement
- Prepare the computer for disassembly and remove the bottom cover. (printed page 50).
- Take the battery out of the machine. (printed page 50).
- Unplug the touchpad and backlight cables, undo the screws and lift the pad out. (printed page 50).
Parts this procedure uses
- HP cable N01915-001 (N01915-001)
Part numbers in our catalog
- HP touchpad M21999-001 (M21999-001)
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-g9-touchpad-replacement-p50