Dell Precision M6500 bricked vBIOS

[User32]

I managed to brick yet another FirePro M7820 because of the dogshit software that is called ATIWinflash, tried flashing a 1.25V BIOS to my GPU and my flasher crashed halfway.

Is there a way I can fix this? I have a Revelprog-IS on order, a working M7820 in another M6500, and I have a CH341A but no wires for the clip.

[PKTKS]

Remove the BIOS chip and re-flash from scratch
by using an external programmer.

Last hope in case you can manage this still cheap

Paul

[User32]

Remove the BIOS chip and re-flash from scratch
by using an external programmer.

Last hope in case you can manage this still cheap

Paul

Problem with that is: I can't solder.

EDIT: Programmer has been sent and I also ordered a preprogrammed BIOS chip in case I can't do ICP.

[User32]

Went to someone with a programmer and clip and it seems it's impossible to in-circuit program. Looks like I have to wait until the chip comes in the mail or find soemone to remove the chip and program it myself.

[aqibi2000]

The programmer doesn’t have the output impedance to drive the I/O when in circuit.

Quite likely the issue

[User32]

Had the chip pulled, double checked both vBIOS'es I have (1.15v and 1.25v) with Radeon BIOS Editor, flashed the 1.25V vBIOS with the (excellent btw) Revelprog-IS programmer and gave it back to the guy for soldering. Wish me luck, I better hit 1 GHz core clock on that fucking M7820 after so much trouble!

Really pissed the brick happened though, with stock/1.05V I hit 850/1200 clocks which is unheard of with a M7820.

[wraper]

Should be able to unbrick without desoldering anything. https://www.reddit.com/r/Amd/comments/3nxhju/my_semidetailed_guide_to_unbricking_an_amd_gpu/
As you most likely have no video on the laptop, you can create a bat file for it to run automatically on startup. Or simply type blindly.

[aqibi2000]

Ch341a is a 5/3.3v programmer

[User32]

Should be able to unbrick without desoldering anything. https://www.reddit.com/r/Amd/comments/3nxhju/my_semidetailed_guide_to_unbricking_an_amd_gpu/
As you most likely have no video on the laptop, you can create a bat file for it to run automatically on startup. Or simply type blindly.

Ch341a is a 5/3.3v programmer

I already own a CH341a but I don't have a Pomona 5250 clip, I ordered one from the USA. Oh, and blind flashing is not an option, the M6500 does not boot with a bricked vBIOS.

[User32]

W00t, received my Pomona Clip. Now how the hell do I connect it? I have leads for the Revelprog but the pinout is incomprehensible to me.

[aqibi2000]

You’re confused how the SOIC 8 adapter pin out will match you numbered 1-8 pins on your programmer?

Just use some DuPont wires 

[aqibi2000]

Pin out is just the usual 24/25xx series flash 8 pin

You have the header on the side of the programmer and also can lock DuPont pins into the ZIF locking socket too. Just improvise it’ll take only a few minutes.

[User32]

So, final report: card is dead. I had the vBIOS chip replaced again with another, known good one and yet the card stayed dead.