[PROBLEM] Flashing a modded ASRock Z370 MB BIOS

Did you try to flash via FPT yet instead? If not, try, here is FPT version you need in this package, run from command prompt at the folder location (put mod BIOS inside folder too) It’s inside “Flash Programming Tool” folder
https://mega.nz/#!GB9XSBqZ!2lnEz1iVjW6Do…wS6ojpyYI29FUo0

Run this command from the folder containing the FPT exe and the mod BIOS.

fptw.exe -bios -f modbios.bin <<< DO NOT FLASH LIKE THIS, unless you have dumped your BIOS region previously, and then modified it, and this is your dumped modified BIOS region. DO NOT USE THIS command with stock BIOS!

If you get error, show me image of the command ran and the error all on same screen so I can try to help you around issue (If error like “Failed to disable write protection for BIOS space” etc we can fix)

If you need to update ME, you will have to use ME FW Update tool (I can show you later if you need)