How To Root Samsung Galaxy S3 / Root Tutorial???

This tutorial will guide you through the steps to root Galaxy S3. This tutorial will help you to setup ClockworkMod recovery to the recovery partition and superuser file. Rooting Samsung Galaxy S3 is safer than S2, because in S II the recovery partition was a part of the kernel. There was high-risk of phone brick. Thanks to Samsung, they’ve followed Nexus’ way and made recovery partition separate from kernel. Thus, making it safer to root.

Warning: Even if it’s safer than S2, there are chances that your phone might brick. Root your device at your own risk.This tutorial is for GT-I9300 and GT-I9300T ONLY. Check your phone model by going to “Settings” -> “About Device” and confirm “Model Number” from there. If you try to follow this method for any other model or device, it might not work. The chances of phone brick are always there. Enough of warning.Steps to root, on your way.

What you need before starting the rooting process: 

• A computer with Windows operating system.
• Micro USB cable to connect your phone to system.
• At least 50% battery charge. If you’re conservative, you can go for full charge too.

Note: If you end up Kernel panic mode, do not panic! Just run ODIN, and flash the files again.
Read the warning again. Nobody except you will be responsible for any damage to your device. Neither me, nor Samsung.
Still here? 

• Okay then, hold down the 3 keys namely, volume down, home and power button for a few seconds. Keep the position till something happens. By something I mean, your device will reset and show a screen to go into download mode.
• Press volume increase key to enter into download mode.
• Now you can connect your Samsung Galaxy S III to the computer via Micro USB cable.
• DownloadGalaxyS3Root zip file. There are 3 files in the package CF-Root-SGS3-v6.1.tar, odin3 v1.85.exe and Odin3.ini. Unzip them.
• Open device manager to confirm that you have required drivers installed. If you can see “Samsung Mobile USB CDC Composite Device” there, you’re good to go. Otherwise, you need to download Samsung Kies. Install it, and re-plug the mobile.
• Go the files extracted in step 5. Open Odin3 v1.85.exe. You will see a window with a COM number in a box highlighted with yellow colour. The only thing matters here is the colour of the box, if it’s not yellow that means something’s not correct. You can try some tweaks like, killing Kies process from Windows task manager, re-installing drivers, rebooting system, etc.
• Hit the ‘PDA’ button and select CF-Root-SGS3-v6.1.tar file we got by unzipping, in step 5. Then, click “Start”.
• Just a few moments, and your phone will restart, giving you ClockworkMod recovery with root.
• If you get “PASS” on desktop screen – cheer up! Everything is fine till now.
• It will automatically reboot into ClockworkMod recovery and install some files.
• After successful reboot, you will see an app named “SuperSU” in app drawer. It is the Superuser app.
• To verify if you got root access or not, try opening an app which needs root access to function. You can try AirDroid screenshot feature, Titanium Backup, or any other app. Once you will open any such app, you will see superuser request pop-up. Grant access whenever you see this window.

That’s it! You now own a rooted Samsung Galaxy S3. To get into ClockworkMod recovery anytime, just hold the 3 keys, volume up, center home and power button for a few seconds.