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 41–61). 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 EliteBook 640 G10. Confirm the exact model on the service label before starting.
HP EliteBook 640 14 inch G10 smart card reader from the top cover replacement. HP prints the spare part table for this procedure on printed page 53.
Tools and parts
- Tweezers, a pry tool that neither conducts nor marks and a magnetic Phillips P1 driver
- Static-safe work surface
N12914-001- Smart card reader. Source: printed page 54.
Preparation
HP prints its tools list and its handling and electrostatic-discharge cautions on printed page 30. Its preparation for disassembly is on printed page 39: 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
- Get the computer ready for disassembly (see that procedure on page 39). (printed page 41).
- Take off the bottom cover (see that procedure on page 39). (printed page 41).
- Take off the battery (see that procedure on page 48). (printed page 52).
- Take out any protective tape covering the card and reuse during replacement. (printed page 53).
- Detach the aerial lead from the ZIF plug (1) on the NFC module. (printed page 53).
- Detach the main board lead from the ZIF plug (2) on the NFC module. (printed page 53).
- Use a tool to free the module from the machine (3). The NFC module is secured with adhesive. (printed page 53).
- Take out the NFC module from the computer (4). (printed page 53).
- Get the computer ready for disassembly (see that procedure on page 39). (printed page 41).
- Take off the bottom cover (see that procedure on page 39). (printed page 41).
- Take off the battery (see that procedure on page 48). (printed page 52).
- Take out the two broad head Phillips M2.0 × 2.0 screws from the metal bracket that covers the (printed page 54).
- Take out the four Phillips M2.0 × 2.0 screws from the metal bracket covering the card reader (printed page 54).
- Detach the cable from the card reader. (printed page 54).
- Gently lift the smart card reader straight up (printed page 55).
- Get the computer ready for disassembly (see that procedure on page 39). (printed page 41).
- Take off the bottom cover (see that procedure on page 39). (printed page 41).
- Detach the battery cable from the system board (see that procedure on page 48). (printed page 41).
- Take out display cable from the clips on the fan. (printed page 55).
- Take out the three Phillips 2.0 × 4.0 screws that hold the fan to the computer. (printed page 55).
- Detach the fan cable from the system board. (printed page 55).
- Lift the fan out of the computer (4). (printed page 56).
- Get the computer ready for disassembly (see that procedure on page 39). (printed page 41).
- Take off the bottom cover (see that procedure on page 39). (printed page 41).
- Detach the battery cable from the system board (see that procedure on page 48). (printed page 41).
- Take out the WWAN module (see that procedure on page 44). (printed page 56).
- Detach the lead from the ZIF plug (1) on the fingerprint reader board. (printed page 56).
- Take out the Phillips M2.0 × 2.5 screw that holds the fingerprint reader bracket to the (printed page 56).
- Take out the fingerprint reader board from the computer (4). (printed page 57).
- Get the computer ready for disassembly (see that procedure on page 39). (printed page 41).
- Take off the bottom cover (see that procedure on page 39). (printed page 41).
- Detach the battery cable from the system board (see that procedure on page 48). (printed page 41).
- (UMA models) In the order indicated on the cooler, loosen the four captive Phillips screws that (printed page 57).
- Take out the heat sink from the computer (2). (printed page 58).
- (Discrete models) In the order indicated on the cooler, loosen the six captive Phillips screws (printed page 58).
- Take out the heat sink from the computer (2). (printed page 58).
- Wipe the old compound off the heat sink and main board faces components each time the heat sink is removed. (printed page 58).
- Get the computer ready for disassembly (see that procedure on page 39). (printed page 41).
- Take off the bottom cover (see that procedure on page 39). (printed page 41).
- Take off the battery (see that procedure on page 48). (printed page 52).
- Take off the fan (see that procedure on page 55). (printed page 60).
- Detach the following cables from the system board: (printed page 61).
Parts this procedure uses
- HP card reader N12914-001 (N12914-001)
Manufacturer manual
HP Maintenance and Service Guide (PDF, HP). Machine-readable copy: /api/guides/hp-elitebook-640-14-inch-g10-smart-card-reader-from-the-top-cover-replacement-p53