[Problem] HP BIOS Rollback/Downgrade

BIOS/UEFI Modding BIOS Modding Guides and Problems
5

You won’t get PRO on this on a snap of a finger… its needs to get experience on it, so read and learn, the rest its all to the user

[Guide] Using CH341A-based programmer to flash SPI EEPROM - BIOS/UEFI Modding / BIOS Modding Guides and Problems - Win-Raid Forum

[GUIDE] Flash BIOS with CH341A programmer - BIOS/UEFI Modding / BIOS Modding Guides and Problems - Win-Raid Forum

[Guide] How to Use a CH341A SPI Programmer/Flasher (with Pictures!) - BIOS/UEFI Modding / BIOS Modding Guides and Problems - Win-Raid Forum