Getting back to stock rom without rooting will be necessary for warranty 🙂
Files needed:
1. PC Odin
(Check Attachment)
2. Your Firmware
Sammobile.com
Here we go:
1. Backup what you need to
2. Install ADB Drivers (Samsung Kies)
3. Put your phone in download mode – Hold Vol Dn + Power + Home for 10 seconds then press Vol Up to continue
4. Check if Custom Binary Download is NO, if Yes then proceed to step 6 if it says 1 count or something like that then go to step 5
5. Follow the thread below to reset the binary counter (or check my video tutorial to do so…) once reset get back to download mode
http://forum.xda-developers.com/show….php?t=1494114
6. Go to SamMobile.com and download the latest firmware for GT-I9300 (Galaxy S3)
http://www.sammobile.com/firmware/?p…0&r=-1#modelsa
7. The downloaded firmware would be a zip file right click and extract it to get a .tar.md5 file
8. Connect the phone to the pc via usb cable
9. Run Extract the zip file that you downloaded from the attachment below and run Odin3 1.85. exe
10. Make sure that only Auto Reboot and F.Reset Time are checked and click on PDA, select the .tar.md5 file that we just extracted
11. Now hit Start
12. Once the phone is up go to Settings -> About Device -> Status, check if the device status says NORMAL… if it does, then the device is unrooted if it still says MODIFIED continue…
13. Reboot into Android Recovery by holding Vol UP + Home + Power till you see Samsung Galaxy S3 displayed on screen…
14. Do a factory wipe and wipe cache then reboot
15. The phone will be rebooted and can be sent in for warranty
Hope this guide helps someone.
http://forum.xda-developers.com/showthread.php?t=1710613
(Thanks to ashwin123)
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