here is a guide for you.
Pre-requisites
1) Install USB Drivers for Samsung Galaxy S3
http://www.mediafire.com/?t3w1d8yvdhwju3w to transfer files between the Android device and the computer.
2) As the tutorial might wipe all data of the phone, create a backup for the same. If the device is having any custom recoveries such as ClockworkMod/TWRP already installed, then backup data using the recovery.
3) Verify that the battery of Galaxy S3 should have above 80% of charge.
4) The stock official firmwares are compatible only with Samsung Galaxy S3
SCH-I535 . Flashing this on any incorrect variant is likely to brick the device. Therefore, verify the model number of Galaxy S3 by navigating to
Settings>>
About Device>>
Model number.
Steps to unroot Samsung Galaxy S3 SCH-I535 to stock official firmware
Step-1: Download
Firmware archive | Samsung Updates for Samsung Galaxy S3 to the computer
Step-2: Extract the downloaded zip to get a file with .tar. md5 extension along with some other files
Step-3: Download Odin
http://www.mediafire.com/download/ksxw43u5to27tkx/Odin3-v1.85.rar which will help to install the Jelly Bean firmware. Extract the zip to get Odin3 v1.85.exe file with few others
Step-4: Now place the Galaxy S3 in the
Download Mode by pressing and holding
Volume Down,
Power and
Home buttons together for about 10 seconds. A warning screen will appear. Then press the
Volume Up button to continue to enter Download Mode
Step-5: Run Odin3 v1.85.exe as an
Administrator (right click the Odin file and choose "run as administrator"
Step-6: Connect the Galaxy S3 to the computer using USB cable while the phone is in the Download Mode. Wait until Odin detects the device. When the device is connected successfully, the ID: COM box in Odin will turn yellow with the COM port number. Also, the successful connection will be indicated by an
Added message in Odin.
If the Added message does not come then try another USB port, try the one located at the back side of the computer. If that does not work too then re-install USB Driver
Step-7: Now select these files that are extracted from the stock firmware folder to install on the phone
a) Click the
PDA button and select the file with
.tar.md5 extension
b) Click the
Phone button and select the file with
Modem in its name
c) Click the
CSC button and select the file with
CSC in its name
d) Click the
PIT button and select the
.pit file (pit file is also in the Odin directory if you need it)
Note: Ignore the steps b, c and d if such files are not found.
Step-8: Ensure that
Auto Reboot and
F.Reset Time check boxes are selected in Odin. But uncheck the
Re-Partition option. Click it only if a .pit file is being used
Step-9: Finally hit the
Start button in Odin. The installation should begin now and would take some time to complete
Step-10: Upon the completion of the installation process a
Pass message will appear under Odin. The phone will then restart automatically. Once the home screen appears, unplug the USB cable from the phone to disconnect it from the computer
Step-11: Once the phone is up, head over to
Settings>>
About Device>>
Status and check the status. If it says
NORMAL means the device is unrooted. If the status says
MODIFIED then do the following
Step-12: Reboot the phone into
Recovery mode by holding
Volume Up,
Home and
Power buttons together until the Samsung Galaxy S3 displays on the screen
Step-13: Perform a
factory wipe then select
wipe cache partition
Step-14: After the action is completed, return to the main recovery menu and select
reboot system now to reboot the phone
The Samsung Galaxy S3 is now unrooted successfully and running stock official firmware.
Thanks for this tutorial i modified goes to,
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