unlock bios lenovo ideapad u160

[mini78]

Hi,
I am trying to unlock the bios of an old Lenovo Idepad U160.

I read the bios with universal bios toolkit 2.0:

https://www.dropbox.com/s/crk10ud5dqgkuk...W.rom?dl=0

Can some one helpme?

[mini78]

So i found a tutorial PDF in this forum for phoenix bios. I tried to open the bios.rom with Phoenix Bios Editor but i get "PSI analysis fail". Can someone help me please?

thanks