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 38). 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 840 G8. Confirm the exact model on the service label before starting.
HP EliteBook 840 G8 wwan module replacement. HP prints this procedure on printed page 38 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
L70670-001- WWAN module Intel XMM 7360 LTE-Advanced (Cat 9). Source: printed page 39.
Preparation
Save your work, shut the computer down through the operating system, unplug AC power and every external device, and work on a grounded, static-safe surface.
Replacement
- Prepare the computer for disassembly and open the bottom cover so the cellular module is reachable. (printed page 38).
- Disconnect the antenna leads from the module and release the cables from their routing clips. (printed page 38).
- Undo the retaining fastener and lift the module out of its connector without bending the leads. (printed page 38).
Part numbers in our catalog
- HP wireless card L92722-001 (L92722-001)
- HP wireless card L92724-001 (L92724-001)
- HP wireless card L70670-001 (L70670-001)
- HP wireless card L83053-001 (L83053-001)
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-elitebook-840-g8-wwan-module-replacement-p38