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 EliteBook 645 G9. Confirm the exact model on the service label before starting.
HP EliteBook 645 14 inch G9 Notebook PC touchpad replacement. HP prints this procedure on printed page 54 of its maintenance and service guide, and the spare-part table for this part is on printed page 20.
Tools and parts
- Screwdrivers and a non-marking pry tool as HP lists for this procedure
- Static-safe work surface
N00096-001- Touchpad for use in models without NFC. Source: printed page 53.M47178-001- Touchpad for use in models with NFC (includes NFC antenna). Source: printed page 54.N00097-001- Touchpad cable (included in Cable Kit). Source: printed page 54.
Preparation
Save your work and shut the computer down through the operating system, unplug AC power and every external device, and work on a clean, grounded, ESD-protected surface while sorting each screw by its original location. Handle every cable by its connector and put each one back in its own place during reassembly.
Replacement
- Get the machine ready for taking apart (the Preparation for disassembly section is on page 40). (printed page 43).
- Take the bottom cover off (the Bottom cover section is on page 40). (printed page 43).
- Take the battery out (the Battery section is on page 50). (printed page 54).
- Detach the main board lead from the ZIF connector on the touchpad (1). (printed page 54).
- (Choose models only) Detach the aerial lead out of the ZIF connector on the NFC module (2). (printed page 54).
- Take the four Phillips M2.0× 2.0 fasteners (3) that hold the touchpad to the machine. (printed page 54).
- Take the two Phillips M1.6 × 2.0 fasteners (4) that hold the touchpad to the machine. (printed page 54).
- Take the touchpad from the machine (5). (printed page 54).
- Fit the replacement part by working back through the printed removal steps (printed page 54).
Parts this procedure uses
Part numbers in our catalog
- HP touchpad N00096-001 (N00096-001)
- HP touchpad M47178-001 (M47178-001)
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-elitebook-645-14-inch-g9-touchpad-replacement-p54