Pavlogal

http://grimore.org/windows/spoof_hardware_identifiers
Just found this, might be helpful to you.

Yes. Straps and PCB from GTX 1060 6GB. Donor chip P106 (marked as GP106-100-A1) is laserlocked! Card not worked as GTX1060! Bios and straps did not help to modify P106 or P104 into their game analog! Only drivers mod can help.

straps
a set of resistors used to configure various functions of the card
https://envytools.readthedocs.io/en/latest/hw/io/pstraps.html#pstraps

Hello, guys! I 'm on Asus 1060 6Gb, transplanted the chip instead of the murdered GP106-400-A1, sealed the GP106-100-A1... With native bios (ASUS), the mother hung on post 25, the card started only with bios from the P106 and the card blunt became defined as P106-100. There are no video outputs. So there are no straps, the whole secret is in the GP106-100-A1 chip itself.

I tried it does not work - GPU mismatch.
In this version, not all checks are patched, I patched more. There is a 3 checks: GPU mismatch, Board ID mismatch and PCI ID mismatch + timeout (you just don’t have enough time to press Y (yes) for each of the three checks - the video card will interrupt the process by timeout, so I also patched the request "press Y to bypass" )
 
It still doesn't work. The final decision is made by the video chip. You need a hardware programmer.

I  went through all the checks inside nvflash with the debugger,  but the last check is on the side of the video card itself. Not on nvflash side.