P51* BIOS downgrade impossible?

[User32]

I bought a reasonably priced P51 but of course the previous owner updated the BIOS to 1.52, which blocks undervolting. Am I SOL or is there any way I can downgrade? External flashing?

 

[mcb]

Check the bios settings 'downgrade protection'.

 

[User32]

Check the bios settings 'downgrade protection'.

Is already off, it's this """""security""""" related bullshit reason Lenovo states that blocks me from going back to 1.49:

To me, it seems more intentionally malicious than some arbitary security crap. If the glowies want you they'll use one of their secret arsenal exploits lol

 

[mcb]

Ok.

 

[binford6100]

Maybe it is possible to flash the bios chip via CH341 Programmer?

 

[deeptrancer]

I bought a reasonably priced P51 but of course the previous owner updated the BIOS to 1.52, which blocks undervolting. Am I SOL or is there any way I can downgrade? External flashing?

I have edited your post again and removed the insult (also again!)! If you post it another time, we will block your account.