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 G2. Confirm the exact model on the service label before starting.
HP EliteBook 840 G2 Notebook PC WLAN module replacement. HP prints this procedure on printed page 66 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
756747-001- Intel Dual Band Wireless-N 7265NB 802.11 a/b/g/n 2×2 WiFi adapter for use only on HP ZBook 14 G2 Mobile Workstation computer models. Source: printed page 66.810813-201- Intel Dual Band Wireless-AC 3160 802.11 ac 1×1 WiFi + Bluetooth 4.0 Combo Adapter for use only on. Source: printed page 66.783721-001- Intel 7265 NGWGQ.I ac 2×2 + Bluetooth 4.0 LE PCIe+USB NGFF 2230 for use on all computer models in Asia Pacific countries and regions. Source: printed page 66.784644-001- Intel Dual Band Wireless-AC 3160 802.11 ac 1×1 WiFi + Bluetooth 4.0 Combo Adapter for use on all computer models. Source: printed page 66.756748-001- Intel Dual Band Wireless-N 7265AN 802.11 a/b/g/n 2×2 WiFi + Bluetooth 4.0 Combo Adapter for use on all computer models. Source: printed page 66.756749-001- Intel Dual Band Wireless-N 7265AN 802.11 b/g/n 2×2 WiFi + Bluetooth 4.0 Combo Adapter for use on all computer models authorized for use in the computer by the governmental agency that regulates wireless devices in your country or region. If you replace the module and then receive a warning message, remove the module to restore device functionality, and then contact technical support.. Source: printed page 66.
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 58).
- Cut the power from the machine by unplugging the power cord from the machine. (printed page 58).
- Detach every external device from the machine. (printed page 58).
- Take the service cover off (the Service cover section is on page 57). (printed page 59).
- Take the battery out (the Battery section is on page 59). (printed page 60).
- Detach the WLAN aerial leads (1) from the contacts on the WLAN module. (printed page 66).
- Take the Phillips PM2.0×3.0 fasteners (2) that hold the WLAN unit to the base enclosure. (The WLAN unit tilts up.) (printed page 66).
- Take the WLAN module (3) by pulling the unit out of its slot at an angle. (printed page 67).
- Fit the replacement part by working back through the printed removal steps (printed page 67).
Part numbers in our catalog
- HP WLAN module, 3160 802.11 ac 1x1 with Bluetooth 4.0 810813-201 (810813-201)
- 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 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 1756749-001 (1756749-001)
- HP WLAN module, 7265AN b/g/n 2x2 with Bluetooth 4.0 756749-001 (756749-001)
- HP WLAN module, 7265NB 802.11 a/b/g/n 2x2 756747-001 (756747-001)
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-g2-wlan-module-replacement-p66