Just as a follow up, although this has been merged with X1 20QF, I actually need the BIOS for type 20G

Hi forum

lenovo thinkpad X1 yoga, 4th gen- SN PF25B69C
mainboard fx490 nm-b861

I purchased my old work laptop, but it came locked with SUP password which wasn't really a problem until now. I decided to have a go removing it using the autopatch but subsequently find out 32mb BIOS doesn't work and the laptop died. I created 2 images of the old BIOS which were hash checked and tried to put 1 back after failing with the patch file , but I end up with a verification error whilst programming and the flash fails.

I have tried to flash some of the X1 BIOS...