You may need to do a force flash in an administrator privileged command prompt. (Find cmd in start menu right click and open as administrator)
If that is not performed you may receive the stupid 0FL error.
Then follow this command
Enter this command first
Amdvbflash.exe -i to identify what number the gpu is (if it works still)
(Unsure if this next command works in latest tool)
Amdvbflash.exe -unlockrom 0 (number the card is such as 0, 1, 2, 3...)
Then enter this command
amdvbflash.exe -fa -fp -p XXXX.rom
Note: XXXX is the name of the VBIOS file you downloaded. You can also change the downloaded file name to a simple name.
Otherwise you do it this way:
Create a new text file in your ATIFlash directory, name it FLASH.bat, and place this code into it:
@Echo off
cls
echo Flashing card 0 with BIOS.rom...
echo.
amdvbflash.exe -fa -fp -p BIOS.rom
echo.
pause
Assuming the new BIOS you want to flash onto your card is named BIOS.rom, this is the BIOS it will use for flashing.
Save your changes, then run the batch file by double-clicking on it.
Once you've received a success message, reboot your computer for the new BIOS to come into effect. If you can boot into Windows successfully, then that's good! (Note: your screen may flicker for a bit, because you basically have a new card, and Windows is trying to recognize it. If you want to be thorough, go ahead and do a clean re-install of your graphics drivers.)