Ch341a mobo bios flashing problem

BIOS/UEFI Modding BIOS Modding Guides and Problems
4

From older to new threads on the subject… take some readings, its general guidance, some ICs are hard to deal with, due to motherboard circuit design to the SPi

[Guide] Using CH341A-based programmer to flash SPI EEPROM - BIOS/UEFI Modding / BIOS Modding Guides and Problems - Win-Raid Forum (level1techs.com)

[GUIDE] Flash BIOS with CH341A programmer - BIOS/UEFI Modding / BIOS Modding Guides and Problems - Win-Raid Forum (level1techs.com)

[Guide] How to Use a CH341A SPI Programmer/Flasher (with Pictures!) - BIOS/UEFI Modding / BIOS Modding Guides and Problems - Win-Raid Forum (level1techs.com)

NeoProgrammer
ASProgrammer (recently updated last week)
Colibri
etc…

EDIT: Even if the whole flash operation is successful, make a new dump/reading again and HEX compare it to the source.