When it comes to unlocking the bootloader of an Android device, there may be multiple methods depending on the company that made the device.
Xiaomi also has its own policies and set up a way for users who want to unlock their phone’s bootloader.
This involves specific software made specifically for the task.
Meet Mi Flash Unlock Tool, the official Windows-based software that allows you to unlock the bootloader easily.
With a very simple user interface, Mi Unlock Tool also has an easy-to-use interface.
It does nothing but free your phone’s bootloader from factory constraints.
You can download the complete software from the link below. The tool requires no installation (portable).
Just save it to your computer, extract the zip file, and double-click batch_unlock.exe to run the software.
http://miuirom.xiaomi.com/rom/u1106245679/5.5.224.25/miflash_unlock-5.5.224.25.zip