if you're looking for the BIOS beep guide, please check the guides:
https://www.techspot.com/vb/topic95391.html
I'm assuming he has access to an EEPROM programmer. That means remzibi need the BIOS file in a format which that the programmer can understand, which is almost universally binary. No doubt, Sony doesn't offer binary ROM files outside of a self-installing winflash utility which can't be run on any computer but the VGN-AX570G. ...(