Samsung Galaxy A21s is a Mid-end Android smartphone, which comes out with 6.5 inches PLS IPS touchscreen display powered by an Octa-core processor along with 2-6GB RAM. It runs on Android 10, upgradable to the Android 11 operating system. If you are using this smartphone and looking for a way to root it, you are in the right place as I have given a tutorial to root Samsung Galaxy A21s smartphone here.
By following the tutorial given here, you will be able to root Samsung Galaxy A21s smartphone by flashing TWRP recovery in it. Once you have gained root privileges on your device, you will install custom ROM firmware (which uses the latest Android versions), custom-built Android applications, etc.
WARNING: Rooting your Samsung device will void its warranty. Also, rooting might sometimes result in a bricked device. So, if your device gets into trouble while following this tutorial, do not hold me liable. Please proceed at your OWN risk.
Step 1: To get started, take a complete backup of personal data on your smartphone using appropriate apps. We will use this backup to restore your personal data if your device gets corrupted during the rooting process.
Step 2: Once done, follow our guide on how to unlock bootloader on Samsung Galaxy A21s to unlock its bootloader.
Step 3: Next, download Samsung Galaxy A21s USB driver and install it in your computer. Only by installing the USB driver on your device, you will be able to connect the smartphone to computer.
Step 4: Now, enable “Developer Options” in your device by following this path: Settings -> About Phone -> Build Number (tap on it for 7 times). Once done, enable USB debugging mode by following this path: Settings -> Developer Options -> USB Debugging.
Step 5: Next, ensure that your device has at least 50-60% battery backup in it before getting started with the rooting procedure as it is a battery-consuming one.
Once you have finished all these prerequisites, you can move forward with the rooting tutorial given below.
Tutorial To Flash TWRP Recovery In Samsung Galaxy A21s:
Step 2: Next, switch off your smartphone and boot into the download/bootloader mode by pressing and holding the Volume Down and Power buttons simultaneously.
Step 3: Once your device boots into the download mode, connect it to your computer using the original USB data cable. If you have installed the USB drivers of the Samsung Galaxy A21s in your computer properly, Odin will automatically identify your device, and you will see a “Added” message in its Logs. Also, the ID: COM will turn to “Blue” color.
Step 4: Now, click on the “AP” button in Odin window, and select the galaxy_A21s_twrp_3.5.1.tar file.
Step 5: Next, click on the “Start” button to launch the flashing process (which will take a minute or two to get completed). Once the flashing process is finished, you will get a “PASS” message in the Odin. Your device will also get rebooted.
Step 6: Now, unplug your smartphone from the computer.
That’s it. Now, you have successfully finished flashing TWRP recovery in the Samsung Galaxy A21s smartphone. Let’s find out how you can root your device.
Tutorial To Root Samsung Galaxy A21s:
Step 1: To get started, download Magisk Manager APK and install it on your Samsung Galaxy A21s smartphone.
Step 2: Once installed, launch the Magisk Manager app. Once the app is launched, you will see the “Install Magisk” prompt message. Click on “Install” and choose “Download Zip Only” in the Select Method screen.
Step 3: Once the Magisk file is downloaded, reboot your Samsung Galaxy A21s smartphone into recovery mode by pressing and holding the Volume Up and Power buttons.
Step 4: Now in the TWRP recovery screen, click on “Install” and select the download Magisk ZIP file in your device. Once you do that, Magisk will be installed on your Samsung Galaxy A21s device.
Step 5: To finish, click on “Reboot System” to reboot your device.
That’s it. Now you have successfully gained root privileges on your Samsung Galaxy A21s Android smartphone. For confirmation of root, use the Root Checker for Android app.
If you own a smartphone or tablet other than Samsung Galaxy A21s and would like to get rooting tutorials for the same, kindly visit our Rooting Tutorials page.
If you encounter any issues while following this rooting procedure, do let me know via comments.