Toshiba Qosmio x770 plz flash bios

[phobia]

hi all,

i have qosmio x770 with 2.1 vbios on it, i want to downgrade it to 1.10 initial bios, i used AFUDOS the engineers edition to force it, it worked but nothing happened after i placed that command, something is wrong or missing ?

i used this : C:>afudos/ibios.rom/nr/pbnc

nothing happened after that, thr pointer stayed flashing for all the time ....