Samsung has released XXUGNH4 Android 4.3 Jelly Bean official firmware for Samsung Galaxy S3 I9300. Once you have updated (Flash I9300XXUGNH4 Android 4.3 Official on Galaxy S3 - How to), here is how to root XXUGNH4 Android 4.3 using CF Auto Root package and get the super access of your device.

Prerequisites to root I9300XXUGNH4 Android 4.3 JB on Galaxy S3 I9300:

Please check these prerequisites before going forward to theupdate guide.

Downloadand install USB drivers for Galaxy S3 in your computer.Make sure to takebackupof any important files on your smartphone.Enable USB debuggingoption by pressingMenu>Settings>Applications. Navigateand tap onDeveloper Optionsto ensure thatUSB Debuggingis enabled.Ensure that your Samsung Galaxy S3 carries more than 70% of charge.

Stepsto root I9300XXUGNH4 Android 4.3 JB:

Required files:download CF-Auto-Root packageforGalaxy S3I9300 fromhere.Also, download theOdin3 v3.09 for installation fromhere.

Here are the steps to root I9300XXUGNH4 Android 4.3official firmware on Samsung Galaxy S3 I9300:

Unzip Odin on your computer and install it.Unzip firmware zip file in the same folder as Odin.Switch yourSamsung Galaxy S3 off and boot it inDownloadmode: press and holdVolume Down, PowerandHomebuttons together.Connect your smartphonewith computer. When connected successfully, you will get a message in Odin sayingAdded!!.(In case you don’t get it, try another USB port. If that doesn't help either, then re-install USB drivers).On your Odin, selectPDAand locate the CF-Auto-Root package zip file downloaded earlier.Make sure to checkAuto RebootandF.Rest Time.Click onStartto initiate the update process.When root package installation is successfully completed, you will get aPASSmessage.Once you see the home screen, you can disconnect yourSamsung GalaxyS3 I9300 and reboot it.