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 820 G2. Confirm the exact model on the service label before starting.
HP EliteBook 820 G2 Notebook PC and WLAN module replacement. HP prints this procedure on printed page 47 of its maintenance and service guide, and the spare-part table for this part is on printed page 24.
Tools and parts
- Screwdrivers and a non-marking pry tool as HP lists for this procedure
- Static-safe work surface
756748-001- Intel Dual Band Wireless-AC 7265AN 802.11 a/b/g/n 2×2 WiFi + Bluetooth 4.0 WLAN module. Source: printed page 47.756749-001- Intel Dual Band Wireless-N 7265 802.11 a/c 2×2 WiFi + Bluetooth 4.0 Combo Adapter. Source: printed page 47.783721-001- Intel Dual Band Wireless-N 7265 802.11 a/c 2×2 WiFi + Bluetooth 4.0 Combo Adapter for use in Indonesia. Source: printed page 47.784644-001- Intel Dual Band Wireless-AC 3160 802.11 a/b/g/n+a/c 2×2 WiFi Adapter. Source: printed page 47.
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
- Power the machine down. If you cannot tell whether the machine is off or in Hibernation, turn the machine on, and after that shut it down through the operating system. (printed page 37).
- Cut the power from the machine by unplugging the power cord from the machine. (printed page 37).
- Detach every external device from the machine. (printed page 37).
- Take the service cover off (the Service cover section is on page 37). (printed page 39).
- Take the battery out (the Battery section is on page 39). (printed page 41).
- Detach the WLAN aerial leads (1) from the contacts on the WLAN module. (printed page 47).
- Take the Phillips PM2.0×2.0 fastener (2) that holds the WLAN module to the main board. (The WLAN module tilts up.) (printed page 47).
- Take the WLAN module (3) by pulling the unit out of its slot at an angle. (printed page 47).
- Fit the replacement part by working back through the printed removal steps (printed page 48).
Part numbers in our catalog
- HP WLAN module, 7265AN a/b/g/n 2x2 with Bluetooth 4.0 756748-001 (756748-001)
- HP WLAN module, 7265AN b/g/n 2x2 with Bluetooth 4.0 756749-001 (756749-001)
- HP WLAN module, 7265 NGWGQ.I ac 2x2 with Bluetooth 4.0 LE 783721-001 (783721-001)
- HP WLAN module, 3160 802.11 ac 1x1 with Bluetooth 4.0 784644-001 (784644-001)
- HP HP Comfort Grip Wireless Mouse 691922-001 (691922-001)
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-820-g2-notebook-pc-and-wlan-module-replacement-p47