Yes, follow the following to the exact letter and enjoy bios downgrading!:)
This method requires the Engineering Edition of AFUDOS. You can google "Afudos Engineering" to find some links to download. Here is a link I've uploaded.
http://www.fileden.com/files/2006/8/...FUDOS229ES.zip http://www.fileden.com/files/2006/8/...FUDOS236es.zip
I use the Boot USB method since its faster and more reliable.
Extract the AFUDOS onto your boot device along with your BIOS in the same directory.
use this command to flash:
AFUDOS /ixxxx.rom /pbnc /n where ixxxx=name.rom
After it sucessfully flashes and verifies. Turn off your machine, unplug, and remove battery.
Easy as pie, spread the word people!!!!
Do at your own risk (Disclaimer) But it works:yepp: The removal of battery is not necessary I found