Sony VAIO VPCEH2Q1E

Hi to all, i search a way to edit the bios for modify native lcd resolution. I have tried this method but doesn't work

http://www.jakobheinemann.de/en/j-bios.html

My notebook is a sony vaio VPCEH2Q1E, the revision of bios is R0200Z9, i have dumped the rom and compare with stock, are identical. This bios are for most models of sony VAIOs

http://www.studentscrunch.com/2012/08/so...sCrunch%29

The dump is here, are a binary image of 2mb

http://www.filefactory.com/file/ir36sf4z...Z9_ROM_zip

Please help me, i have tried to mod but don't have the skill to mod binary directly.
Regards to all,
Gerardo