How To Unroot Galaxy S3 to Stock Official Firmware Easily

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As we all know that rooting voids phone manufacturer warranty. Today, here is the opportunity for the Samsung Galaxy S3 users to reclaim their mobile warranty by unrooting the device. Thanks to the Xda developer, ashwin123, who has provided simple method to unroot Galaxy S3. Today, in this article I will show you the easiest way to unroot Galaxy S3. If you are ready to unroot Galaxy S3 then follow the steps below carefully, also read Pre-requiste.

How to unroot Galaxy S3 to Stock Official Firmware


1. Your mobile should have 70 – 80% battery

2. Make sure that you have enabled USB debugging (All apps > Settings > Manage Applications > Development > USB Debugging – check box)

3. Ensure you have backed up your important data.

4. The phone must be rooted. (How to root Samsung Galaxy S3 GT-I9300 or GT-I9300T [CWM Recovery])

5. Download TriangleAway application to reset binary counter/flash counter to zero

6. Install USB drivers on your PC from here.

How to unroot Galaxy S3 to Stock Official Firmware

Step 1: Download stock official firmware (according to the region)to unroot Galaxy S3 and extract it on desktop.

Step 2: Download Odin v1.85 and extract it on desktop.

Step 3: Now, switch off your phone to boot it into Odin/Download mode by pressing and holding Volume down + Home + Power Key (long Press), till you see the Android Logo on screen. And then press the Volume Up key to enter download mode.

Step 4: Open the “Odin.exe” and then connect your phone to computer via USB cable. As soon as you connect, ID:COM box in Odin turns light green/yellow.

Step 5: Now, select the files as per below instruction to unroot Galaxy S3 to Stock Official Firmware. Files are found to be from the extracted folder.

  • Click on “PDA” and select file with “.tar.md5” in its name.
  • Click on “Phone” and select file with “MODEM” in its name.
  • Click on “CSC” and select file with “CSC” in its name.
  • Click on “PIT” and select “.pit” file.

Step 6: Make sure that only F. Reset Time and Auto Reboot boxes are checked on Odin. Don’t check any other boxes.

Step 7: Click on Start button on Odin to start installation process. It will take upto 5 – 8 minutes, so please wait for the installation finish.

Step 8: Finally, you will get PASS! Notification on the ID: COM box and then your device will reboot automatically and now you can unplug your phone from computer.

Step 9: Now, again switch off your phone and reboot in recovery mode by “pressing & holding Volume Up, Home and Power buttons” together for few seconds.

Step 10: Perform “factory wipe” and “wipe cache partition“. And then reboot your phone.

That’s it, you have successfully unroot Galaxy S3 running on Stock Official Firmware as well as you have recovered your phone warranty. If you face any problem then inform us via comments and we will help you to get rid off ASAP! Happy Recovering 😀

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