This page sets out the repairs, upgrades and data recovery we carry out on the HP EliteBook 820 G4, with notes on what tends to go wrong and what can and cannot be upgraded. It is a 12.5-inch laptop from 2017. Both the drive and, on most configurations, the memory can be upgraded, which makes it a good candidate for a refresh.
- Model number
- 820 G4
- Released
- 2017
- Type
- Laptop
- Screen
- 12.5-inch
- Storage
- M.2 SSD, replaceable
- Memory
- SODIMM slots
Repairs we carry out on the HP EliteBook 820 G4
Screen replacement
We replace the 12.5-inch panel like-for-like, matching resolution and connector to the part number on the original.
Price confirmed before work starts
Windows repair and reinstall
Windows 11 support depends on the processor: versions with an 8th-generation Intel Core or Ryzen 2000-series chip or newer qualify, and earlier ones do not. We check yours and advise.
Battery replacement
The battery is internal and held by screws. We fit a new one, then calibrate and test it under load. At this age, short runtime and sudden shutdowns usually point to a worn battery and not a board fault.
Price confirmed before work starts
Charging port and power repair
Depending on the configuration this charges through a round socket, USB-C or both. We test the adapter, the port and the charging circuit to find which has failed.
SSD and storage upgrade
The HP EliteBook 820 G4 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 820 G4 have SODIMM memory slots, so memory can be increased. We check what is fitted and the maximum the board supports.
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 820 G4, 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
- USB-C charging and docking faults are common board repairs on recent generations.
- 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.
Data recovery from the HP EliteBook 820 G4
The SSD in the HP EliteBook 820 G4 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 820 G4 sits in the range
Its nearest relatives in the HP EliteBook 800 range are the older HP EliteBook 820 G3 (2016). It is the most recent 12.5-inch model of the range that we list.
Questions
Can the SSD or memory in the HP EliteBook 820 G4 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 820 G4 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 820 G4.
Can the HP EliteBook 820 G4 run Windows 11?
It depends on the processor. Versions with an 8th-generation Intel Core or Ryzen 2000-series chip or newer are supported.