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 640 G2. Confirm the exact model on the service label before starting.
HP ProBook 640 G2 Notebook PC fingerprint reader replacement. HP prints this procedure on printed page 73 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
840664-001- For 14" products. Source: printed page 72.840735-001- For 15" products. Source: printed page 72.
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
- Take out the Phillips screwfrom the fingerprint reader bracket(1). (printed page 73).
- Take out the bracket(2). (printed page 73).
- Take off the cable (3) (printed page 74).
- Fit the replacement part by working back through the printed removal steps (printed page 74).
Part numbers in our catalog
- HP Fingerprint reader board with cable, 14 inch 840664-001 (840664-001)
- HP Bracket kit with fingerprint, WLAN module and smart card rea 840683-001 (840683-001)
- HP Fingerprint reader board with cable, 15 inch 840735-001 (840735-001)
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-640-g2-fingerprint-reader-replacement-p73