If your Lenovo ThinkPad P1 Gen 3 has a broken screen, will not charge, runs hot or will not start, we can diagnose and repair it at our Bermondsey workshop. It is a 15.6-inch mobile workstation from 2020, identified by machine types 20TH, 20TJ. Both the drive and, on most configurations, the memory can be upgraded, which makes it a good candidate for a refresh.
- Machine types
- 20TH, 20TJ
- Released
- 2020
- Type
- Mobile workstation
- Screen
- 15.6-inch
- Storage
- M.2 SSD, two slots on most configurations
- Memory
- SODIMM slots
What we repair on the Lenovo ThinkPad P1 Gen 3
Screen replacement
Cracked, flickering or lined 15.6-inch screens are replaced with a matching panel. Where the picture comes and goes as the lid moves, we check the display cable and hinges first.
Price confirmed before work starts
Graphics repair
The graphics chip is soldered to the board. Artefacts, crashes under load and a black screen with the fans running are diagnosed to the chip, its memory or its power stage, and repaired at board level where it is economical.
Windows repair and reinstall
The Lenovo ThinkPad P1 Gen 3 meets Microsoft’s Windows 11 requirements in most configurations. We upgrade from Windows 10, which reached end of support in October 2025, or reinstall Windows 11 cleanly with your files kept.
Battery replacement
We replace the internal battery and check the charging circuit and adapter at the same time. A battery of this age that swells should be replaced before it damages the trackpad or casing.
Price confirmed before work starts
Keyboard and trackpad repair
The keyboard is a separate part on most ThinkPads and is replaced without disturbing the rest of the machine. Trackpad and TrackPoint buttons are replaced the same way.
Charging port and power repair
Charging is over USB-C. A loose or dead port is replaced where it is a separate part, or repaired on the motherboard where it is soldered.
Overheating and fan repair
A thermal service covers fresh compound on the processor and graphics chip, new thermal pads where needed and both fans cleaned. It is the usual cure for throttling and loud fans under load.
SSD and storage upgrade
Most configurations of the Lenovo ThinkPad P1 Gen 3 have two M.2 slots, so a second SSD can be added, or the existing one cloned to a larger drive.
Price confirmed before work starts
Memory upgrade
Most configurations of the Lenovo ThinkPad P1 Gen 3 have SODIMM memory slots, so memory can be increased. We check what is fitted and the maximum the board supports.
We also carry out motherboard repair, liquid damage repair, hinge and casing repair, virus removal on the Lenovo ThinkPad P1 Gen 3, 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
- They run hot under sustained load, and a thermal service often cures throttling.
- P-series workstations have multiple memory slots and drive bays on the larger models; the thin P1 and P14s are more restricted.
Data recovery from the Lenovo ThinkPad P1 Gen 3
The SSD in the Lenovo ThinkPad P1 Gen 3 can be removed and imaged on our own equipment, so files can usually be recovered even when the machine will not start. Recent Windows machines often have device encryption or BitLocker switched on. If so we will need the recovery key, which is normally saved in your Microsoft account.
Estimate the cost with our data recovery calculator, or read about recovering files after a ransomware attack.
Where the Lenovo ThinkPad P1 Gen 3 sits in the range
Its nearest relatives in the Lenovo ThinkPad P Series range are the older Lenovo ThinkPad P1 Gen 2 (2019) and the newer Lenovo ThinkPad P15 Gen 2 (2021).
Questions
Can the SSD or memory in the Lenovo ThinkPad P1 Gen 3 be upgraded?
The SSD can be replaced, and most configurations have a second M.2 slot. Memory is in slots on most configurations and can be increased.
My Lenovo ThinkPad P1 Gen 3 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.
Is a 2020 Lenovo ThinkPad P1 Gen 3 still worth repairing?
It depends on the fault. A battery, SSD or charging socket is usually worth doing. A major board repair on an older machine may cost more than the machine is worth, and if that is the case we will say so.
Where do I find the model number on my mobile workstation?
The base label shows the model name and a machine type, four characters such as 20W0 or 82H8. For this model, look for 20TH or 20TJ.