Open Rufus, target your USB disk, and set the Boot Selection category dropdown menu directly to . Click Start to format the partition layouts. Step 2: Stage Your Utilities and Firmware Files

Download a verified copy of the package from an industrial repository like the Advantech ESS-WIKI BIOS Tool Matrix .

Since this is an older, legacy tool, it is no longer hosted on the official American Megatrends (AMI)

To use this tool, you must boot into a DOS environment (not Windows) using a tool like to create a bootable USB drive. Updating your BIOS with DOS Mar 11, 2564 BE —

Press and wait. Do not interrupt power, touch the keyboard, or turn off the machine until the command prompt returns with a success message.

If applying these utility parameters to an AMI-driven mobile notebook workstation, verify the internal battery reservoir maintains an active charge exceeding 80% capacity.

To safely deploy AFUDOS 5.05.04, you must build a clean, minimal operating system layout that boots directly into an MS-DOS command-line interface. Step 1: Create a Bootable MS-DOS USB Drive

While modern Windows 10/11 offers graphical flashing tools (like ASUS EZ Flash or MSI Live Update), these tools fail when:

Power on the machine to land in the interactive C:\> FreeDOS prompt terminal. Type the following commands sequentially: afudos oldbios.rom /S Use code with caution.

When you're dealing with firmware that can permanently damage your PC if corrupted, getting the tool from a safe source is critical. Avoid downloading from obscure, third-party websites that might bundle modified versions or malware.

Copy both the afudos.exe file and your BIOS ROM file directly to the root folder of your newly formatted USB drive.