Originally Posted by 555BUK
No need to jury-rig anything when the 290 has a switch which allows selection of of two entirely separate BIOS. At default both switch positions contain the same stock BIOS. Some people have problems flashing pos1 (nearest the back plate side of your case), so make sure the switch is set to pos2 (nearest the front of your case) before flashing.
If the flash fails and you get black screen, turn off PC, flip the switch back to pos1, start PC, and when at DOS prompt flip the switch back to pos2 and reflash. Having a backup BIOS on pos1 means you never have to boot from a second card.
The flash commands you need are:-
*save existing bios
atiflash -s backup.rom
*flash new bios
atiflash -f -p 0 biosname.rom
If your atiflash.exe is called something different, rename it within windows to it's correct name. This will not make any difference but it will save confusion.
I've been switching cards as per the unbricking the card instructions in the OP. I'll try what you mentioned.
The commands I'm using are:
atifla~1.exe -I (get 0 for adapter)
atifla~1.exe -f -p 0 ASUS.rom (for ASUS BIOS)
atifla~1.exe -f -p 0 XFX.rom
My atiflash.exe is named correctly in Windows but gets renamed when I'm flashing a new bios for some reason.
Anyway, I'll keep trying.
Edit: No errors. It says it gets flashed successfully. It even identifies as an R9 290x with the manufacturer, etc. right after flashing, before I reboot.