Get the Mi Unlock Tool 6.5.406.31 and extract the ZIP file to a folder on your PC.
Mi Unlock Tool 6.5.406: The Definitive Guide to Bootloader Unlocking
Includes built-in USB and Fastboot drivers to ensure your PC recognizes the device in Fastboot mode. mi unlock 6.5.406
Try a different USB port (USB 2.0 is often more stable than 3.0 for Fastboot). Ensure you have installed the drivers from the tool's settings menu.
Plug your phone into the PC. The tool should display "Phone connected" . Get the Mi Unlock Tool 6
Enable USB Debugging and OEM Unlocking in your phone's Developer Options.
Unlocking your bootloader is the first step toward advanced customization, including rooting, installing custom recoveries like TWRP, or flashing custom ROMs. Ensure you have installed the drivers from the
Launch miflash_unlock.exe and sign in with the same Mi Account currently logged into your phone.
Click the "Unlock" button. If you see a countdown (e.g., "168 hours"), you must wait for that period before trying again. Troubleshooting Common Errors
Uses Xiaomi’s official servers to verify your Mi Account and device binding.