Philippe,
I've tried the utility from via (awfl823b.exe) with their BIOS file *.BIN. This worked without problems that's why i think it's not a hardware problem. Also my motherboard data sheet doesn't mention any jumper to enable writting... You mean i have to convert my romimage in a *.BIN file? I've looked for an utility which could do that but i didn't find. Can you please give the name.
You should be able to flash romimage using awfl823b.exe.
-Andrew