Not sure, it was linked in one of those threads I linked you to above. Ohh, I see @Falkentyne mentioned it here in post #6 but did not provide a link (sorry, I thought he linked it)
Hopefully he will reply here and link you to example item to be used with CH341A to program ITE 8587 via ribbon cable.
Replacing QFP would mean chip replacement, not something you can do with proper tools and previous experience. And even then, you’d still need setup or config to program the chip first
Is the XMG A517-M18 a compatible BIOS for your model, same graphics card at least? if yes, program in that BIOS and see if it starts or not, since you flashed in that models EC FW.
You flashing in EC FW for other model would not have anything to do with GP106/GP107 stuff we’re discussing.
Show me your before images, vs current, only the ones showing graphics card, so I can see if it looks 100% same card or not from what little we can see with the heatsinks on.
I explained why vBIOS is in BIOS above at post 203, this is common sometimes, but generally it would match the card that’s in the system.
And yes, in your case the vBIOS is stored on the card or board, since you dumped it off some chip.