According the feedback we got until now the usage of the tool with Desktop mainboard UEFI BIOSes is very safe. The UBU tool has been designed and optimized for the modification of Desktop mainboard BIOSes. The steps you need to cover in order to carry out the task successfully are the following: run it with administrative rights, provide the BIOS file you want to modify, choose the update to be applied and wait for the application to do its job. The CPU microcode can also be brought up to date during the process.

The principle it relies upon is simple: provided with an AMI UEFI BIOS file, the program is able to detect the version of OROM / EFI modules in order to update them. Developed by a modding expert, UEFI BIOS Updater has scarce competition, being one of the few tools on the market that can perform BIOS modding with low chances of BIOS failures. UEFI BIOS Updater is a BIOS modding toolkit that allows you to perform an update for OROM / UEFI modules of an AMI UEFI BIOS without requiring advanced knowledge on modding techniques. Otherwise there are some restrictions: a) The old MMTool v5.0.0.7 cannot execute some specific tasks correctly with AMI Aptio V BIOSes (see below). The latest UBU tool versions are generally usable with the AMI Aptio MMTool v5.0.0.7 and v5.2.0.24, but the best choice will be the usage of an especially patched v5.2.0.24 (look here). V5.0.0.7 (for the newest Aptio V BIOSes) and supports all Intel and AMD platform BIOSes. The UBU tool uses the AMI Aptio MMTools v4.50.0.23 (for the older Aptio IV BIOSes) resp. Many of these are incorporated directly into Aptio source code, while others are available for direct sale to AMI customers. BIOS/UEFI Tools & Utilities AMI provides a comprehensive lineup of debug and diagnostic tools, pre-boot utilities and development systems to help improve the development experience and speed time to market. The utility is particularly useful in the case where modules and/or Option ROMs need to be upgraded after the initial Aptio. As one of AMI's BIOS/UEFI utilities, MMTool allows users to manage firmware file modules within the Aptio ROM image. MMtool stands for Module Management Tool.

Mmtool v5.0.0.7 download