I'm trying to flash the AMI BIOS of an FW6400GX motherboard using an Aopen AK72 (Award) board. So far, I know the BIOS chip is working and the board recognizes it. Both chips are W29C020, with the FW6400 chip being a rebranded AE29F2008. To make sure the board programs the chip, I flashed the AK72 BIOS onto it using a program provided by Aopen. In short, I now have two chips with AK72 BIOS. I don't have to swap the chips anymore; all that's left is to successfully program the currently socketed one.

Both chips are only recognized correctly by programs designed for AMI BIOSes.
- When I try to use the program provided by aopen and replace the BIOS file, I get a message that the file is invalid.
- When I try using uniflash, I can't do anything because the program doesn't recognize the chips. If I enter "UNIFLASH.EXE -E ROMNAME.ROM", or "UNIFLASH.EXE -E -AMI ROMNAME.ROM"- I get a message that the chip isn't recognized, and the PC speaker beeps continuously.
- when I try to use amiflash, after entering the rom name the program hangs with the message "searching rom on disk"
What else i can do? I need to FORCE flashing