In the same Developer Options, enable USB debugging . Connect: Plug your phone into your PC using a USB cable. Step 2: Install Required Tools on PC
Requires the Mi Unlock Tool and a bound Mi Account, often with a waiting period. unlock-tool-loader
This will help me give you specific commands for your unlock tool. In the same Developer Options, enable USB debugging
Unlocking the bootloader will factory reset your device, erasing all internal data. Backup your data first. Warranty: This may void your device warranty. Security: Unlocking lowers device security. In the same Developer Options
Type adb devices . If authorized, your device serial number will appear.
Follow the prompt on your phone screen (usually using volume buttons to select "Yes/Unlock"). Reboot: Once finished, type fastboot reboot . Brand-Specific Variations