Aptio V UEFI Editor: Updated Guide to BIOS Customization Aptio V is the latest flagship UEFI firmware from AMI (American Megatrends), designed for modern multi-architecture platforms including x86 and Arm. While AMI provides official tools like to OEMs, enthusiasts and developers often turn to the Aptio V UEFI Editor , a powerful open-source alternative for unlocking hidden menus and modifying BIOS settings.