Versions (2)
LATEST
EC-V1.39
← current download
- Latest BIOS (current) | EC-V1.39
V0.23
↓ V0.23
- Factory BIOS | V0.23
Older versions stay downloadable for rollbacks — every version keeps its own verified file.
Changelog
LATEST
2024-08-13
← current download
- X1 8840U Driver
Older versions stay downloadable for rollbacks — every version keeps its own verified file.
Guides for the 8840U
1 guides, grouped by taskAlso useful for 8840U
Broad guides are shown here without being assigned to a specific model.
Generic / cross-device guides
View all generic guides
Getting started
Returns – How to package your Item
This article will help you understand how to return a product to us to ensure it remains safe during transit. We will…
Troubleshooting
The Ultimate Guide to Fixing Windows 11 Blue Screen of Death (BSOD) Errors
Introduction The Blue Screen of Death (BSOD), technically known as a "stop error," is a critical safety mechanism within the Windows 11…
Addressing Windows 11 24H2 BSODs on Select WD & SanDisk SSDs
Understanding the Issue Users upgrading to or installing the Windows 11 version 24H2 update have reported encountering significant system instability, specifically experiencing…