|You didn't explain HOW you attempted it - there are a few different ways. This is the method I usually use.|
1st, copy the flash utility & new BIOS file (AFLASH.exe & PS51010.bin) to a freshly formatted floppy.
Then go into the BIOS & make sure the floppy drive is set as the 1st boot device.
Next, I usually boot off a WinME startup disk, select option 4 (minimal boot) & wait til it stops at the A:\ prompt.
Then remove the startup disk & insert the floppy with the BIOS & flash utility.
At the A:\, type AFLASH & hit ENTER, then just follow the instructions.