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™ WWAN module replacement. HP prints this procedure on printed page 34 of its maintenance and service guide, and the spare-part table for this part is on printed page 14.
Tools and parts
- Screwdrivers and a non-marking pry tool as HP lists for this procedure
- Static-safe work surface
N13692-001- Intel XMM 7360 LTE-Advanced [Cat 9]. Source: printed page 34.
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 28). (printed page 30).
- Take the bottom cover off (the Bottom cover section is on page 28). (printed page 30).
- Detach the battery lead from the main board (the Battery section is on page 30). (printed page 32).
- Undo the Phillips M2.0 × 2.5 fastener (1), and after that take the bracket from the unit out (2). (printed page 34).
- Gently detach the aerial leads from the unit (3). (printed page 34).
- Pull the unit out of the socket to lift it out (4). (printed page 35).
- When the WWAN aerial is not on the terminal of the WWAN module, you must fit a protective sleeve on the aerial connector, as shown in the following illustration. (printed page 35).
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-wwan-module-replacement-p34