Xiaomi provides an official unlock tool known as the Mi Unlock Tool for the users to unlock their bootloader. With this tool’s help, you can rest assured for unlocking the bootloader of any Xiaomi device safely and in an official way. Moreover, the newest version of the Mi Unlock Tool, which is the v4.5.813.51. Mi Unlocker Tool is used for unlocking the bootloader of any Xiaomi device after getting permission From MIUI's official website.