To update an AMI (American Megatrends) BIOS, you typically use the utility or a manufacturer-specific tool. It is highly recommended to obtain updates and flashing tools directly from your motherboard manufacturer's website to ensure compatibility. Common AMI BIOS Update Tools How to Update MINI PC BIOS with EFI Shell
Most new PCs no longer support legacy DOS. The modern equivalent is the UEFI Shell—a pre-boot environment similar to a command line. AFUEFI offers the safety of DOS (no OS interference) with support for modern 64-bit UEFI BIOS structures, including the SPI protocol and secure flash. ami bios update tool