(https://github.com/lertsoft/GPD_WIN4/releases/latest)
GPD Google Drive
GPD GDrive Link
Download
Password
123456
Changelogs
Note: This version of BIOS firmware is applicable to WIN 4 (7640U, 7840U, 8840U) models. Please ensure that the device is in a charging state when upgrading the BIOS.
Potential Issues
Disclaimer.
If your device is not experiencing any issues, please do not upgrade.
Some people are not experiencing the potential issues and are having an issue-free device so far.
This BIOS is pre-release and not publicly distributed by GPD, so be mindful of that.