Install Stock ROM on Samsung Galaxy M21? [Stock Firmware/ Unbrick]

Hello there, welcome to another guide. Today, in this tutorial, I will show you How to Install Stock ROM on Samsung Galaxy M21. If you have a Samsung Galaxy M21 smartphone with you, then you can follow this guide until the end.

I have shown you the easiest way to Flash Stock Firmware on Samsung Galaxy M21. Sometimes, while rooting or while installing a custom ROM, we eventually brick our android phone. But you don’t have to worry, I have shown you how you can Unbrick your Samsung Galaxy M21 smartphone and restore stock ROM.

You can flash Stock ROM on your Samsung Galaxy device using two methods, one using Odin flash tool (official method) and the second using TWRP Recovery. If you have already rooted your Samsung Galaxy M21 using the TWRP method, then you can go with the second method.

You may also link, how to Install Custom ROM on Samsung Galaxy M21. (Custom ROM File May Or May Not Be available as per the development)

Advantage Of Stock ROM

  • Your phone warranty will be back.
  • Stock ROM will fix the boot loop problem on Samsung Galaxy M21.
  • Installing a stock ROM will unroot your Samsung Galaxy M21, if it’s previously rooted.
  • You will be able to receive OTA updates.
  • All the bugs will be fixed.

Must Read: How to Root Samsung Galaxy M21

Let’s Install Stock ROM on Samsung Galaxy M21 Android Phone

Now, before proceeding to steps, make sure to read the important points that you must fulfill before Installing the Stock Firmware on your Android Phone.

  • Make sure to take the full backup of your phone.
  • Fully charge your phone.
  • You need a PC / Laptop to flash ROM files on your Samsung Galaxy M21 smartphone.
  • This guide is only for the Samsung Galaxy M21 smartphone. Please do not try this on any other android phone.

Install Stock ROM Samsung

Disclaimer: All the tutorials/ guides shown in this blog are not tested for each and every smartphone. As the process of Flashing Stock ROM is almost the same for every smartphone.

If anything happens to your smartphone RootingSteps.com is not responsible for loss and damage to your smartphone. Try these methods with your own risk!

Must Read – Various Issues on the Samsung Galaxy M21 & How to Fix Them

Steps to Install Stock Firmware on Samsung Galaxy M21?

Below, I have shown you two methods to flash Stock firmware on the Samsung Galaxy M21 smartphone. You can choose any of the shown methods according to your convenience.

Method 1: Flash Stock ROM using Odin Flash tool

You need to first fulfill the below requirements before proceeding to the steps.

Prerequisite

Steps

  1. Once you have downloaded the Samsung stock firmware (.zip) for your device. Extract the downloaded firmware Zip file to an easily convenient location on the PC.
  2. Extract the Odin flash tool on the PC.
  3. Open the extracted folder and double-click on the Odin3.exe file.
  4. Connect the Samsung Galaxy M21 device to the PC while it is in Download/ Odin Mode.
    Samsung download mode
  5. After you connect your Samsung Galaxy M21 device, you will see the ID:COM section light up blue. Moreover, you will see Added message under the log section.
    samsung galaxy device added odin
  6. Click on the AP button and select the firmware file.
    Odin flash start
  7. Make sure to select Auto Reboot and F.Reset Time under the “Options” tab.
  8. Thereafter, click on the Start button to begin the flashing process.
  9. Once the firmware flashing process completes, you will Green PASS! Message.
    Odin flash pass
  10. All Done! Your Samsung Galaxy M21 device will automatically Reboot and you can disconnect your device.

Method 2: Flash Stock ROM using TWRP Recovery

  1. First, Install TWRP Recovery on Samsung Galaxy M21
  2. Download Stock Firmware File.
  3. Move the Stock Samsung ROM file to your Samsung Galaxy M21 Internal Storage.
  4. Once done, Boot your Samsung Galaxy M21 to recovery mode by holding the Power Button Plus Volume Down for 5 seconds.
  5. Now, you should see something like this.
    TWRP Recovery Page
  6. Go to Install > Locate the Stock ROM that you have just downloaded.
  7. Select the ROM file and “Swipe To Confirm Flash”.
  8. Wait for a couple of minutes, and once the process completes.
  9. Reboot your phone.
  10. You have successfully flashed the Stock ROM on your Samsung Galaxy M21 android phone.

Also Read: Unlock Bootloader On Samsung Galaxy M21


Conclusion

So, I have shown you the complete steps to Restore Samsung Galaxy M21 on Stock ROM, make sure to leave a comment on which this guide works on your phone. Moreover, share your valuable feedback in the comment section. I will try my best to solve all your queries of yours as soon as possible.

We’ll see you in the next guide.

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