How to Root and Unlock Bootloader of Xiaomi Mi A3 2021


How to Root and Unlock Bootloader of Xiaomi Mi A3 2021 – This tutorial contains detailed instructions on how to Unlock bootloader (UBL) and root Xiaomi Mi A3.  Xiaomi recently launched its new Xiaomi Mi A3 smartphone in India.

How to Root and Unlock Bootloader of Xiaomi Mi A3
How to Root and Unlock Bootloader of Xiaomi Mi A3

How to Root and Unlock Bootloader of Xiaomi Mi A3

This smartphone is a strong mid-range smartphone segment and has quite a number of exciting new features and enhancements. For example, you get a triple camera setup on the back of the phone along with Sony’s latest 48MP sensor.

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Let’s see the below guide on how to unlock Unlock bootloader (UBL) and then root Xiaomi Mi A3. So, without further ado, let’s get right to this article;

Xiaomi Mi A3 specifications

The Xiaomi Mi A3 is a mid-range Smartphone with Qualcomm Snapdragon 665 SoC which packs an 11nm Octa-core Kryo 260 CPU with a clock speed of 2.0GHz. The Adreno 610 GPU is sufficient for handling tasks that require a lot of images. This device has two different storage options, namely 4GB + 64GB and 4GB + 128GB internal storage.

Users can also expand storage up to 256GB via a MicroSD card. The 6,088-inch DotDrop AMOLED screen makes it more beautiful with an HD + resolution of 1560 x 720 pixels. The rounded viewing corner with 2.5D glass and Corning Gorilla Glass 5 makes it look premium and durable.

In the optics department, the Xiaomi Mi A3 carries an AI Triple rear camera with a 48 MP Sony main camera, an 8 MP ultra-wide-angle camera, and another 2 MP depth camera. It is optimized with AI portrait mode, night photography mode, and AI scene detection. The AI ​​32 MP selfie camera comes in a dewdrop view with AI face unlock capabilities, Panorama Selfie, etc.

Other features include an in-screen fingerprint sensor, a 4030mAH hybrid SIM slot and a battery that supports QC 3.0 18W fast charging. In terms of connectivity, this phone offers support for WiFi, Bluetooth 5.0, GSM / VoLTE, 3.5mm audio port, GPS, GLONASS, AGPS, and Beida. It also packs a Gyroscope, Accelerometer, Electronic compass, IR blaster, light sensor, and proximity sensor to make it smarter.

Requirements & Downloads

  • Download and Install ADB and Fastboot Platform Tools.
  • Enable USB Debugging and OEM Unlocking on your Mi A3.
  • Don’t forget to keep your cell phone charged up to a minimum of 50%. This will avoid unnecessary dies during the process.
  • Download and install  Xiaomi USB Drivers to enable a successful connection between your device and PC.
  • Also download the latest Magisk Manager APK file:  MagiskManager-v7.3.2.apk.
  • Finally, download the stock boot image file for your Mi A3. The latest available version is V10.3.5.0.PFQEUXM  can be downloaded from GitHub.

How to Unlock Bootloader (UBL) of Xiaomi Mi A3

  • As mentioned earlier unlocking the bootloader (UBL) on your Mi A3 will erase all data. So please make a Buckup before continuing.
  • Open the ADB and Fastboot platform Tools folder. In the address bar field, type cmd. This will open a command prompt window.
How to Root and Unlock Bootloader of Xiaomi Mi A3
  • Type in the code below and if you get a Hp ID it means a successful ADB connection between your device and PC is established. If not, make sure you have installed the Xiaomi USB Drivers and USB Debugging is enabled.

ADB devices

How to Root and Unlock Bootloader of Xiaomi Mi A3
  • Now type the following code to boot your phone into fastboot mode:

ADB reboot bootloader

  • You can type the following command and check if the phone has successfully booted into fastboot mode:

fastboot devices

How to Root and Unlock Bootloader of Xiaomi Mi A3
  • Now type the following two commands to unlock Unlock bootloader (UBL) on your Mi A3. First, type:

fastboot flashing unlock

  • After typing the above command, your device will boot into the Android OS. You will need to reboot the device back into fastboot mode using the ADB reboot bootloader command   (make sure USB Debugging is enabled). Once in fastboot mode, type:

fastboot flashing unlock_critical

  • There he is. You have successfully unlocked the bootloader (UBL) of your Mi A3. Now go to the next section and follow the instructions for rooting it.

How to Root Xiaomi Mi A3 without a PC

Note that the process of rooting Xiaomi Mi A3 Without PC will be divided into two parts. In the first one, we will patch the stock boot img file via Magisk. In the next section the patched boot.img file will then be installed on your phone. After you root you can install TWRP.

How to Root Xiaomi Mi A3 without a PC

  • Download and install Magisk Manager on your cellphone.
  • Also, transfer the downloaded stock boot.img file to the internal storage of your phone.
  • Open the Magisk app and tap on  INSTALL.
  • Again, tap  INSTALL.
How to Root and Unlock Bootloader of Xiaomi Mi A3
  • Now, select the option ”  Select and Patch a File  “.
  • Browse to the stock boot.img file that you downloaded earlier. Then select it.
  • Magisk will now patch the boot.img file.
  • Once the process is complete, you can find the patched boot image file under  Internal Storage  >  Download >  magisk_patched.img

How to Root Xiaomi Mi A3 with Fastboot

  • platform-tools Enable  USB Debugging by going to  Settings  >  Developer Options  (as discussed earlier).
  • Now boot your Mi A3 into fastboot mode. Type the command below:

ADB reboot bootloader

  • Next, flash the boot.img file we patched earlier via Magisk. Type the following code:

fastboot flash boot magisk_patched.IMG

  • where magisk_patched.img is the name of the patched boot.img file.
  • Finally, reboot your phone by typing the command below:


You have now successfully rooted your phone via Magisk. With this, we come to the end of our tutorial on how to Unlock the bootloader (UBL) and root Mi A3. If you have any questions let me know in the comments section below.

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I'm Ruhul Amin, from Assam Guwahati (India) I have been Running this Blog since 2020 with my full effort to Help users in the Tech field and clear doubt and provide advanced guides in simple methods.


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