Yeah sometimes what happens is they get hard locked. And this is a powercolor which can be a pita to flash
You may need to switch to 2.93
Download atiflash/amdvbflash 2.93
Go here
https://www.techpowerup.com/download/ati-atiflash/
Then look for Version 4.68, underneath 4.68 you will see a link to show older version, click that and you should see version 2.93
Then
Follow these steps carefully:
1. Open your "C:" drive in Windows, create a new folder, call it atiflash.
2. Extract the contents of atiflash_293.zip to the "C:\atiflash" folder
3. Find the bios file you downloaded and rename the bios file to p57xt.rom
4. Move p57xt.rom to the "C:\atiflash" folder
5. Open the start menu, type cmd, when cmd.exe appears right click it and hit "Run as administrator"
6. At the command prompt type in cd\ and press enter until only C:\> is on the screen.
7. Type in cd/atiflash and press enter, you should see C:\atiflash>
7a. At C:\atiflash> type in amdvbflash.exe -i to identify what number your gpu is marked with (0, 1, 2)
8. At the C:\atiflash> prompt type in
amdvbflash.exe -unlockrom 0 (or 1, 2)
(there is a space between the e and -unlockrom and 0)(0 is the number zero)
press enter and you will be prompted that the "ROM Unlocked"
9. At the C:\atiflash> prompt type in
amdvbflash.exe -f -p 0 p57xt.rom
(there is a space between the .exe and -f, and a space between -f and -p and 0)press enter.
Follow directions on screen and if flash is successful exit the command prompt and restart, windows should show up on screen
If that still doesnt work follow this guide
Almost every day there are new threads regarding bricked graphics cards due to wrong BIOS flashing, and since eidairaman1 is no longer around to help, here is a guide how to deal with a bad VGA BIOS flash. Find the correct BIOS First off, you'll have to find a copy of the original BIOS. In case...
www.techpowerup.com
And this guide
Lets get physical So; you tried flashing your GPU and you didn't backup. Now you have some dude on the forum linking you a BIOS but you have no way to apply it because you don't have a spare GPU either. Well no worries friend. In this guide we are going to cover the simple procedures of...
www.techpowerup.com
@bigduby
@damric any additional info?
