Need help flashing vbios

[phobia]

Greetings,

1st of all, im a noob doing this for the first time, so please be patient with me.
im trying to flash downgrade my vbios/bios from 2.1 to 1.1 on Toshiba Qosmio x770-107 due to throttling problems.

i used all ways and here is my files if im messing them up.
afudos, Bios.rom, EC.rom, AFUWINTW, AFUD4310, Ucoredll, Ucoresys.sys, Ucorevxd.vxd, Ucorew64.sys

please very please help me on this.

i tried doing it, but i got a '' bios write-protected '' msg