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 G11. Confirm the exact model on the service label before starting.
HP EliteBook 640 14 inch G11 Notebook PC WWAN board replacement. HP prints this procedure on printed page 78 of its maintenance and service guide, and the spare-part table for this part is on printed page 34.
Tools and parts
- Screwdrivers and a non-marking pry tool as HP lists for this procedure
- Static-safe work surface
N96593-001- WWAN board. Source: printed page 78.
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 62). (printed page 65).
- Take the bottom cover off (the Bottom cover section is on page 62). (printed page 65).
- Take the battery out (the Battery section is on page 74). (printed page 77).
- Detach the lead out of the smaller ZIF connector (1) at the WWAN board. (printed page 78).
- Undo the Phillips M2.0 × 4.0 fastener (2) that holds the board to the machine. (printed page 78).
- Raise the board (3) upward enough to access the connector underneath. (printed page 78).
- Detach USB board lead (4) out of the ZIF on the bottom of the board. (printed page 79).
Parts this procedure uses
- HP WWAN board N96593-001 (N96593-001)
Manufacturer manual
HP Maintenance and Service Guide (PDF, HP). Machine-readable copy: /api/guides/hp-elitebook-640-14-inch-g11-wwan-board-replacement-p78