I obtained an Asus Prime Z270-A and I wanted to modify my motherboard to put in a i5 8600k. I modded the Bios with the tool (i think and hope correctly), took the CH341A and connected the pliers to the Bios chip… I erased the file inside the chip, but it wasn’t the corrcet chip! And i didn’t make a backup of the content. So, i need the file inside a windbond 25X05CLNIG, the chip in the photo.
Look into this thread, solution was to buy a used board, copy the content to the bricked board and it worked again.
On a z390 board this chip was the EC SPI Flash. I don’t think that the content will be identical on a Z390 and a Z270 board.
If this would work, there might be more Asus bioses where one could find this chip content in the bios- could only compare this for the linked thread regarding the Z390 board, extracted files have some few differences, but I’m curous what the thread starter will find out…