Before we begin make sure that your battery is at least 80% full. This is VERY important! Your phone must stay on throughout this whole process.
Step number 1
Make sure that you have the Samsung usb drivers installed on your computer. Usually the drivers should install on your computer as soon as you connect your device to your computer. However, if you need to download the USB drivers I have provided a link down below.
Step number 2
Download ODIN v3.07, you will need this in order to execute the rooting process. In addition to ODIN you will need the root file, which leads us to the next step.
Step number 3
Download the root file named root_66.7z onto your computer. You need to download this file and then once the file is downloaded onto your computer you need to unzip it using your own software. I used 7-zip file manager, you can use this or any other unzipping software.
Step number 4
Your phone should be off, the order at which you turn your phone off doesn’t really matter. What does matter is that you have to put your phone into download mode before you start the rooting process. To do this your phone must be off, then you have to press and hold volume down + power button + home button.
Step number 5
Connect your phone to your computer via the micro usb cable. The other end is plugged into your computer.
Step number 6
In ODIN make sure that “auto reboot” and “F. Reset Time” is checked.
Step number 7
Click “PDA” then navigate and select the root_66 .tar file that you unzipped.
Step number 8
Click “Start” the rooting process has begun and the whole process can take anywhere from 10-20 minutes so be patient.
Also, do NOT disconnect your phone under any circumstance. Having a full battery is recommended.
Samsung Galaxy S3 Drivers: