Are you using a Samsung Galaxy A21 Android smartphone? Are you searching for a way to unlock the bootloader of your device? If yes is your answer to both of these questions, then you are on the right page. Just follow the guide given here to unlock the bootloader on Samsung Galaxy A21 successfully.
Once you unlock bootloader on your Samsung Galaxy A21 device, you can install TWRP recovery and root your device.
WARNING: Unlocking bootloader on Samsung Galaxy A21 smartphone will void its warranty. Also, if you don’t follow the procedure given here carefully, you might brick your device. So, if anything bad happens to your smartphone, don’t hold me liable.
Step 1: Before getting started with the bootloader unlocking process, make sure that you take a complete backup of personal data on your Samsung Galaxy A21 device.
Step 2: Now, download Samsung Galaxy A21 USB driver and install it on your Windows computer. If you don’t install the USB driver of your device on Windows, then you will not be able to connect your smartphone to it. Also, use Driver Easy to update all the drivers installed on your computer at once.
Step 3: Check for System Updates on your device. If available, update it to the latest version.
Step 4: Next, enable “Developer Options” by following this path: Settings -> About Phone -> Build Number (tap on it for 7 times). Once Developer Options setting is enabled, enable “OEM Unlock” by following this path: Settings -> Developer Options.
Step 5: At last, ensure that your device has at least 50-60% battery backup. Make sure that you have uninstalled antivirus applications from your Windows computer, as they tend to interrupt the bootloader unlocking process.
Once you have finished all these prerequisites, you can move forward to the tutorial given below.
Tutorial To Unlock Bootloader on Samsung Galaxy A21:
Step 1: At first, Power OFF your Samsung Galaxy A21 Device.
Step 2: To boot your device into download mode, press and hold “Volume Up” and “Volume Down” button and connect your device with computer using a USB cable.
Step 3: Now, in the Download/Recovery Mode, press and hold the Volume Up key until “Unlock Bootloader” screen appears.
Step 4: To confirm the Bootloader unlocking process, press the Volume Up button again.(Just proceed, if prompted – All Data in the device will be deleted)
Step 5: Now, wait until the process gets completed and your device is completely rebooted.
That’s it. Now you have successfully unlocked the bootloader on your Samsung Galaxy A21 smartphone. Next, follow our guide on flash TWRP recovery and root Samsung Galaxy A21 to get root access on your device.