Steps to unlock Xiaomi Mi A3 Bootloader
- Enable Developer Mode by tapping MIUI version 7 times after heading to the Settings > About Phone.
- It is also recommended to enable OEM Unlocking and Mi Unlock Status in the Settings > Additional Settings > Developer Option.
- Download and set-up the ADB and Fastboot tools on your PC. (Note: Extract the downloaded tools zip in a folder on desktop)
- Now, connect your Xiaomi Mi A3 with the PC via a USB cable.
- On the PC, open the ADB and Fastboot Tools folder, and open the CMD or Powershell Window by pressing the Shift + Right Click.
- Type the following command to reboot the device into bootloader mode:
adb reboot bootloader - Execute the following command to check whether the device is connected or not.
adb devices - Now, accept the pop-up message to “Always allow from this computer” by pressing OK.
- To unlock the bootloader, type the below command:
fastboot flashing unlock - Xiaomi Mi A3 will automatically boot the system, but you need to reboot into the fastboot mode by suing command state in step 6.
- After booting into fastboot mode, execute the command to attain full unlock:
fastboot flashing unlock_critical - Xiaomi Mi A3 will reboot into normal mode after successful completion.