Sony vaio vpc-f22l1e bios igpu unlock

hi there ppl. im new around here.
i have a sony f22 with core i7 2630qm with nvidia gt540m gpu. and bios options are so resticted tht i can only change boot order or some stuff like tht. factory bios prevents user to see or change advanced features. my primary goal is to unlock igpu of i7 cpu (hd3000). (don't know why but sony blocked tht)

i'm trying to unlock my bios about tht so i've been reading about this for days on the net. and i tried several times with amibcp 4.53 for changing original bios file settings but failed. i couldn't achieved any of the options revealed on bios. so tried to change default settings directly over the bios file for my intended purpose of unlocking igpu (set internal graphics: enabled, primary display: auto ) . flashed and booted. after tht windows detected there is a new video device. tht was nice but after tht installing appropriate drivers- boom! screen blanked. tried to boot from usb pendrive ubuntu , and when loading ubuntu screen blanked again. i couldn't get what was wrong. booting after safe mode , uninstalled hd3000 drivers, and reflashed original bios file and everything returned back to factory state.

i hope i could have managed to explain issue . sry for my english . and thank you.

  R1190V3.ROM (Size: 2 MB / Downloads: 0)

  K1190V3.ROM (Size: 128 KB / Downloads: 0)