Unlocking a bootloader wipes all internal user data. You must thoroughly prepare both your smartphone and your PC before running the application. On the Smartphone:

Mi Unlock Status, log out of your Mi Account on the device, log back in over mobile data, and bind the account again.

Automatic deployment of Android Fastboot and ADB interface drivers during execution.

Apps relying on Google Play Integrity or SafetyNet (like Google Pay, banking applications, and certain streaming apps like Netflix) may fail to run or reduce video quality without complex root hiding workarounds.

The phone is powered off and booted into "Fastboot Mode" (holding Volume Down + Power). The phone is connected to the PC via a USB cable.

Upon the first attempt to unlock, Xiaomi's servers traditionally impose a security cooldown timer (often 168 hours or 7 days). The user cannot bypass this and must wait for the timer to elapse before the software will execute the payload. Execution via PC

Since this appears to be a support or troubleshooting query, here’s a ready-to-post message you can use on forums (Xiaomi EU, XDA, Reddit, Mi Community):

Once the 168 hours have elapsed, repeat Steps 3 and 4. The process will finish successfully, and your device will automatically reboot with an unlocked padlock icon visible on the boot screen. Direct Technical Comparison

The user must enable "Developer Options" by repeatedly tapping the OS build version.

The bootloader is the code that runs when a phone powers on, guiding the operating system to boot correctly. By default, Xiaomi locks the bootloader to protect users from malicious software, secure personal data if the device is stolen, and ensure system stability.

Users often search for specific version numbers when encountering errors. Common troubleshooting steps include: