HP EliteBook 840 G2 Repair

Laptop Repair London

If your HP EliteBook 840 G2 has a broken screen, will not charge, runs hot or will not start, we can diagnose and repair it at our Bermondsey workshop. The HP EliteBook 840 G2 is a 2015 laptop with a 14-inch screen. Both the drive and, on most configurations, the memory can be upgraded, which makes it a good candidate for a refresh.

MODELHP EliteBook 840 G2
Model number
840 G2
Released
2015
Type
Laptop
Screen
14-inch
Storage
M.2 SSD, replaceable
Memory
SODIMM slots

HP EliteBook 840 G2 repairs and upgrades

Screen replacement

A broken 14-inch screen is replaced with a panel of the same resolution and finish. We check the display cable while the lid is open.

Price confirmed before work starts

SSD and storage upgrade

The HP EliteBook 840 G2 takes an M.2 SSD. We clone the existing drive to a larger one so Windows, programs and files carry over unchanged.

Price confirmed before work starts

Memory upgrade

Most configurations of the HP EliteBook 840 G2 have SODIMM memory slots, so memory can be increased. We check what is fitted and the maximum the board supports.

Windows repair and reinstall

This model does not meet Microsoft’s Windows 11 requirements, and Windows 10 reached end of support in October 2025. We can advise on the realistic options, including a lightweight Linux or ChromeOS Flex installation.

Battery replacement

The battery is internal and held by screws. We fit a new one, then calibrate and test it under load. A battery of this age that swells should be replaced before it damages the trackpad or casing.

Price confirmed before work starts

Charging port and power repair

The round charging socket wears and works loose. On most configurations it is a separate part on a short cable and is replaced without motherboard work.

We also carry out keyboard and trackpad repair, motherboard repair, liquid damage repair, overheating and fan repair, hinge and casing repair, virus removal on the HP EliteBook 840 G2, along with USB, HDMI and audio port repair, Wi-Fi and Bluetooth card replacement, webcam and speaker faults, BIOS password removal with proof of ownership and data transfer to a new machine.

What we see on the bench

  • EliteBooks are designed for servicing, with accessible batteries, SSDs and memory on most 800-series models.
  • HP’s BIOS protection is strict. A forgotten BIOS administrator password usually needs board-level work, and we ask for proof of ownership.
  • USB-C charging and docking faults are common board repairs on recent generations.

Data recovery from the HP EliteBook 840 G2

The SSD in the HP EliteBook 840 G2 can be removed and imaged on our own equipment, so files can usually be recovered even when the machine will not start.

Estimate the cost with our data recovery calculator, or read about recovering files after a ransomware attack.

Where the HP EliteBook 840 G2 sits in the range

Its nearest relatives in the HP EliteBook 800 range are the older HP EliteBook 840 G1 (2013) and the newer HP EliteBook 840 G3 (2016).

Questions

Can the SSD or memory in the HP EliteBook 840 G2 be upgraded?

The SSD can be replaced with a larger M.2 drive. Memory is in slots on most configurations and can be increased.

My HP EliteBook 840 G2 will not turn on. Is my data lost?

Usually not. The drive is separate from the fault in most cases, and we can remove it and copy your files even if the machine itself is not worth repairing.

Where do I find the model number on my laptop?

The product name and product number are on the base label, or under the battery on older models. On many HP laptops Fn + Esc shows them on screen. For this model, look for 840 G2.

Can the HP EliteBook 840 G2 run Windows 11?

Not officially. It does not meet Microsoft's processor and security requirements.

Creative ITUnit 1 The Willows, 80 Willow Walk, London SE1 5SYMonday to Saturday, 9am to 6pm

Other EliteBook 800 models

See every model in this range