Hi, I need the original vbios of my laptop rtx 3060 mobile gpu, I extracted the vbios from gpu-z but I don’t know if it is the original one, and/or corrupted, because I had already flashed a couple of different ones previously, and now the gpu is no longer recognized in windows and gives error 43 in device manager.
from the Nvidia chip I report the model:
S TW 2103A1
SNP9VR.001
GN20-E3-A1
The famous error 43 is usually a sign of hardware failure (GPU) and not vbios corruption.
The OS tries to install/load/initialize the 3D instructions of the GPU driver and fails…
Only a user with such laptop model, can share his vbios, if is willing to
And this one seems not an Lenovo vbios… glad you made backups before playing with flashes!!!
As I imagined it is not the original vbios currently, the last time I tried to flash one from MSI which also caused me to get a black screen when turning on (then solved by setting the igpu from from BIOS).
I hope the GPU is not completely dead and it is possible to recover it somehow via software
Not hardware failures for sure…lol
Im not stating its indeed an HW failure in your case, because it seems you played a lot with it…
You may be in luck and LENOVO having a NVidia vbios FW Image inside a bios update file…else only from a donor.
Wait for other users, search the web for someone who played also and contrary to you made a backup, good luck.
EDIT:
Yes, i saw your post in TPU/Badcpas/Bios-mods… as expected, a bit difficult to get a dump…you got no answers at all.
I said “You may have lucky…” didnt check or going to lose my time with it.
For correclty identify a “possible” vbios candidate on TPU DB, you need to check at least the RAM ICs vendor/model
Is there a chance that the original vbios is inside the bios file downloadable from lenovo site?? on the techpowerup site there are about a hundred vbios even just from Lenovo, but it’s crazy to try them all
So I should disassemble the motherboard to see the exact model? It’s a risky procedure for me because I’ve never done it and I’m afraid I won’t be able to put it back together again.
If no experience in this…just stay put, we can’t recommend any further actions from inexperienced “common” users that can lead them to damage their own systems., that’s it from me, good luck.
EDIT:@Nikola1 …What is the wattage of our laptop AC adapter?
The risk is all yours… but im just going leave it here posted anyway for future user’s reference.
This is a vbios update from Lenovo for a Legion 5 15ARH7H
Because the bios you flashed has already the patch for ReBar…
I bet that if your original vbios was old revison this update would work…
If you still want to proceed AT YOUR OWN RISK, there 2 (3…being one reported as Legion 5 15IAH7H) possible candidates on TPU, UNVERIFIED, there’s none 6Gb laptop SKU verified.
These will probalby need to force the update… as you may already know when you flashed a non-Lenovo vbios previousely.
TPU has plenty of info in the NVidia section
The mb photos you posted will only be usefull for manually program the SPI Bios/vBios IC with a CH34x or similar. At least 2 are visible UG10 Winbond and UU137 GigaDevice and theres another near the DIMM slots. Photos needs more resolution/quality.
Expected…no surprise here…
I told you to look on TPU for guidance
“TPU has plenty of info in the NVidia section”
NVFlash has plenty of switches for these operations…now i really dont have a clue of what version may work on your Lenovo.
Dont you know why is a PCI mismatch??? How did flashed a vbios NOT for your Lenovo model… you had to FORCE IT…or did you just RUN/EXECUTE any stuff from the web and dont have a clue of what you/its doing???
I dont have time for teaching users you dont have a minimal clue of what they’re doing or a bit of knowlodge, Over_N_Out…of here.
Sorry if I’m wasting your time with me, but yes, I’m incompetent and completely idiotic in this field.
I don’t even know what was going through my head that day I flashed the vbios, but if I have to tell you the real truth the PC was giving problems even before I started working on it, that is, a lot of bsods had started, even after formatting it many times, and then after changing the thermal paste, when I turned the PC back on in discrete gpu mode, there were purple and green lines on the display, moral of the story the gpu was no longer working. So in a panic I found a random vbios on TPU that matched the same wattage as mine, it was one from Msi, and I used the nvflash downloaded from TPU, launched as a CMD command from the search bar in Windows Explorer in the exe file folder, like nvflash64 and xxx.rom,
unfortunately it worked on the first try, so after restarting the PC the screen was completely black. And since then with hybrid mode turned off the screen no longer turns on.
That’s all. Now, I’ll look as you suggested on TPU if there is any other guide to force the flashes, by the way there is also a topic of mine right there about this problem, so you are not the only one whose time I am wasting.
Thanks anyway for dedicating your time to me, I will probably keep the laptop like this and it will serve as a lesson, but as I said, I was already in a panic at that moment and I knew that the GPU is probably dead, so everything I do will be completely useless.
Thank you for being honest from the beginning and make me lose my time…
This is the so called “Smart ass” move… hopping that a user with more knowlodge can supply a miracle, without really telling him all the BULSHIT work, done to the system.
Sorry for not explaining the whole story to you right away, but to be short and in a hurry, I tried to get to the point right away, I simply forgot about it since I asked on multiple forums about this problem. So can you also confirm that the gpu is simply dead?
Hey, there’s news, I managed after many attempts to restore the vbios of the gpu, or rather, the screen turned on when I turned on the laptop, in discrete gpu mode, thanks to the nvflash command found in the TPU guide and the right vbios with the tgp of my gpu.
Unfortunately, however, the screen has green and purple lines, in gpu-z the vram is at 0MB so the gpu is not recognized anyway and is not working.
Do you have any advice on what I can try to do or do I have to resign myself that the vga is gone forever?
