9070XT Bios Flashed Fail

[ericool]

I was unable to flash my XFX Quicksilver 9070 XT with a higher TDP 9070XT bios. I used a CH341A device with a 1.8v adapter. I’ve tried multiple bioses Mercury, Red Devil, pulse and still no avail. I just get a black screen. No VGA light on the motherboard. I’m just using neo programmer. Any ideas?

 

[eidairaman1]

I was unable to flash my XFX Quicksilver 9070 XT with a higher TDP 9070XT bios. I used a CH341A device with a 1.8v adapter. I’ve tried multiple bioses Mercury, Red Devil, pulse and still no avail. I just get a black screen. No VGA light on the motherboard. I’m just using neo programmer. Any ideas?

Hope your card isnt damaged, please read this below, then put your original bios back on it and leave the card alone, there is not enough resources to justify flashing it

Post in thread '9070XT BIOS flash (what to use?)'

V

Post in thread '9070XT BIOS flash (what to use?)'

Jul 13, 2025

We just need a new version of AMDVB flash

Its a matter of time

If you are looking for a hardware flasher, I recommend to read https://www.techpowerup.com/forums/threads/guide-flashing-with-a-hardware-programmer.301007/
Just one tip. Dont buy the CH341A Black PCB version. Buy version 1.7!

• VuurVOS

• 

 

[ericool]

Hope your card isnt damaged, please read this below, then put your original bios back on it and leave the card alone, there is not enough resources to justify flashing it

Post in thread '9070XT BIOS flash (what to use?)'

V

Post in thread '9070XT BIOS flash (what to use?)'

Jul 13, 2025

We just need a new version of AMDVB flash

Its a matter of time

If you are looking for a hardware flasher, I recommend to read https://www.techpowerup.com/forums/threads/guide-flashing-with-a-hardware-programmer.301007/
Just one tip. Dont buy the CH341A Black PCB version. Buy version 1.7!

• VuurVOS

• 

its not damaged I can flash it back to its original bios and it works again. It’s just that when I used any other bios it just gives me a black screen. It also a dual bios so it can always revert back to the original.

 

[ericool]

Hope your card isnt damaged, please read this below, then put your original bios back on it and leave the card alone, there is not enough resources to justify flashing it

Post in thread '9070XT BIOS flash (what to use?)'

V

Post in thread '9070XT BIOS flash (what to use?)'

Jul 13, 2025

We just need a new version of AMDVB flash

Its a matter of time

If you are looking for a hardware flasher, I recommend to read https://www.techpowerup.com/forums/threads/guide-flashing-with-a-hardware-programmer.301007/
Just one tip. Dont buy the CH341A Black PCB version. Buy version 1.7!

• VuurVOS

• 

Just and update. I boot up to my regular bios and enter windows normally. I flip the switch back to the flashed bios chip and ‘restart’ my pc I can enter windows normally. It only really happens when it goes on a full power down mode. It’s super weird…

 

[OolongGoat]

Again, just leave it alone and enjoy the card. There isn’t much, if any, gain in messing with it.

 

[ericool]

Again, just leave it alone and enjoy the card. There isn’t much, if any, gain in messing with it.

I hate this kind of logic... You think im doing this because I don’t enjoy it? Isn’t that what’s OCing is about?

 

[io-waiter]

well, there is not much if any performance on the table here, but.

1)Check memory version and PCB, is it supposed to work or is there significant differences?

2)Check layout and format of the flash files, download them and compare.

3) Read a working bios from flash and compare to your not working read from flash, do headers and layout match?

It would not surprise me if there is some signing or checksum going on here .. but this is all me guessing Also I’d use a proper cold and powered off to verify a successful flash, not a reboot. Please let us know if it works out, best of luck

 

[ericool]

well, there is not much if any performance on the table here, but.

1)Check memory version and PCB, is it supposed to work or is there significant differences?

2)Check layout and format of the flash files, download them and compare.

3) Read a working bios from flash and compare to your not working read from flash, do headers and layout match?

It would not surprise me if there is some signing or checksum going on here .. but this is all me guessing Also I’d use a proper cold and powered off to verify a successful flash, not a reboot. Please let us know if it works out, best of luck

In the case of there being of some kind of signing or checksum error how would I go abouts in fixing that? A cold power off and on would just result in a black screen. The only way to get into a boot screen is the restart method. It kind of seems like XFX did some kind of lock or something to prevent flashing another bios. It kind of doesn't make sense for them to even put a dual bios in the card if it's not going to accept any bios.

 

[io-waiter]

If there is a checksum I have no idea, try to find some editor tool and knowledge around the structure of the bios(es) and look, sometimes differences in eg headers and format are blindingly obvious, sometimes they are not…