I just bought a T420s on craigslist and I love it. I'm now trying to downgrade from v1.43 bios to v1.41 so I can flash this whitelist mod: https://www.bios-mods.com/forum/Thread- ... er-changes
Whenever I try to use official update utility, I get "BIOS image file does not match this system. The utility process has not completed." I get the same problems updating it with the CD boot.
I tried flashing the v1.43 bios from the official page.. and that worked. I can't figure out v1.41 though. Been stuck on this for several days...
Any help would be appreciated
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