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 820 G4. Confirm the exact model on the service label before starting.
HP EliteBook 820 G4 Notebook PC touchpad board replacement. HP prints this procedure on printed page 59 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
821668-001- Touchpad board. Source: printed page 59.821667-001- Touchpad board with NFC antenna. Source: printed page 59.
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
- Lift the tape that holds the touchpad board to the computer. (printed page 59).
- Detach the lead from the smart card reader board (2). (printed page 59).
- Detach the NFC antenna from the NFC module (3). (printed page 59).
- Take out the 3 Phillips M2.0x2.0 screws that hold the touchpad board to the computer. (printed page 59).
- Lift the bottom of the touchpad board up (printed page 59).
- Fit the replacement part by working back through the printed removal steps (printed page 59).
Part numbers in our catalog
- HP touchpad board (821668-001)
- HP touchpad board with NFC antenna (821667-001)
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-820-g4-touchpad-board-replacement-p59