After the Galaxy Nexus, the Galaxy S2 and SGS3 are the most popular Android devices in the modding community. Thanks to a bunch of talented developers, the Galaxy S III has CM9/10, camera mods, sound mods and much more. However, the first steps to installing all these various mods is that the user needs root access.
While rooting a Galaxy S3 is pretty easy, thanks to ODIN, it may seem intimidating for newbies. Thankfully, a new toolkit from XDA moderator — mskip — makes rooting the various variants of the Galaxy S III a breeze. Simply download the toolkit and install it. This will also automatically install all the required drivers. Double-click the Galaxy S3 Toolkit, and then connect your phone to the PC with ‘USB Debugging Enabled’. Once the toolkit detects your device, the options present are pretty self-explanatory.
Along with rooting the handset, the toolkit has many other features like the ability to backup the phone contents and restore them, flash the stock recovery, backup the /efs partition on your handset and much more.
The best part about the toolkit is that it works with all the variants of the Galaxy S3, which includes the I9300 and the other U.S variants of the handset. The download link of the toolkit can be found here.