HP Elite c640 14 inch G3 Chromebook fingerprint reader and board replacement

Step-by-step HP Elite c640 14 inch G3 Chromebook fingerprint reader and board replacement rewritten in our own words from HP's Maintenance and Service Guide, with page citations.

Part you needN14814-001HP Fingerprint reader N14814-001 for the HP Elite c640 14 inch G3 Chromebook
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On this page
  1. Applies to
  2. tools and parts
  3. preparation
  4. replacement
  5. Parts this procedure uses
  6. Manufacturer manual
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 43–44). 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 Elite c640 14 inch G3 Chromebook. Confirm the exact model on the service label before starting.

HP Elite c640 14 inch G3 Chromebook™ fingerprint reader and board replacement. HP prints this procedure on printed page 43 of its maintenance and service guide, and the spare-part table for this part is on printed page 43.

tools and parts

  • Tweezers, Nonconductive, nonmarking pry tool and Magnetic Phillips P1 drivers
  • Static-safe work surface
  • N14814-001 - Fingerprint reader. Source: printed page 43.
  • N12915-001 - Fingerprint reader board. Source: printed page 43.
  • N13936-001 - Fingerprint reader cable. Source: printed page 43.
  • N12921-001 - Fingerprint reader bracket (available in the Bracket Kit). Source: printed page 43.
  • N14812-001 - Fingerprint reader insert (available in the Miscellaneous Parts Kit. Source: printed page 43.

preparation

HP prints its tools list and its handling and electrostatic-discharge cautions on printed page 19. Its preparation for disassembly is on printed page 28: power the unit down through the operating system, unplug the power cord and detach every external device before opening it. 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

  1. Detach cable from ZIF connector on right side of the fingerprint reader board (1). (printed page 43).
  2. Detach cable from ZIF connector on left side of the board (2). (printed page 43).
  3. Lift the board out of the computer (3). (printed page 43).
  4. Detach cable from ZIF connector on the fingerprint reader board (1). (printed page 44).
  5. Take out two Phillips M2.0 × 2.0 screws hold fingerprint reader bracket to computer, and then remove the bracket. (printed page 44).
  6. Take out the fingerprint reader from the computer (4). (printed page 44).

Parts this procedure uses

Manufacturer manual

HP Maintenance and Service Guide (PDF, HP). Machine-readable copy: /api/guides/hp-elite-c640-14-inch-g3-chromebook-fingerprint-reader-and-board-replacement-p43

Key facts

HP document part number
N17284-001
Model
HP Elite c640 14 inch G3 Chromebook
Release year
2022
Screen size
14"
Printed pages
43–44

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