The specific Galaxy A21s SM-A217M U5 Firmware Download Package has a Stock ROM of Galaxy A21s SM-A217M U5 Security Patch Level 2021-03-01 (March 1, 2021). This helps bypass FRP lock and revert from the root and custom ROM.
There are various reasons to flash “Stock Firmware on Galaxy A21s SM-A217M U5“. For instance, if your phone gets stuck on the logo and you need to remove the FRP lock from it.
If you’re going to reset your phone hard and cannot access the recovery menu. But most of the problems that cause flashing stock ROM are below.
The Advantages Of Stock ROM:
Fix boot loop issue
Update and Downgrade
Unroot or Fix Bugs
To solve the lag or stutter
Fix software issues.
Revert to stock firmware
Prerequisites:
Supported Phone: Galaxy A21s SM-A217M U5
Charge your mobile: You may no less than a half charge.
How To Install Galaxy A21s SM-A217M U5 Stock Firmware:
1: Download and Install the Samsung USB Driver on your computer. If Samsung USB Driver is already installed on your computer, then Skip this Step.
2: Download and extract the Galaxy A21s SM-A217M U5 Firmware files on your computer.
3: Now, Switch off your Smartphone.
4: Turn off the phone and boot into Download Mode.
Press and hold Volume Down, Home and Power button at the same time for 5-8 seconds until download mode is active.
5: In Download mode, a Warning Yellow Triangle Sign will appear. simply press the Volume Up key.
6: Now, Download and open Odin. Then connect your Smartphone to the computer.
7: After connecting the smartphone to the computer, Odin will automatically recognize the device and display the “Added” message in the lower left panel.
8: Click the PDA button, and choose the Firmware.tar file.
9: Now, click the Start button in Odin to begin the Flashing.
10: Flashing usually takes 30-50 seconds to complete the process on your Phone.
Once the Firmware process is completed, you will see a Green Box with Pass written on it in Odin. During this process, the Smartphone will reboot automatically.
Once you spot the “Pass” message in Odin, you can unplug your device from the computer.
When your Galaxy A21s SM-A217M finally boots up, you should now be running your desired firmware.
To verify the installed firmware, go to Settings –> About Phone –> Software Information. Check the firmware number under “Baseband version.”
Disclaimer:
Read and understand the Full Guide before flashing.”Galaxy A21s SM-A217M U5 Firmware“.
Use these instructions at your own risk. We will not be responsible for everything that happens to your device, resulting from using information in this guide.