How to Update Galaxy S3 (III) to 1st leak Official Jellybean Android 4.1.1 (I9300XXDLG4)

download the jellybean from here: Requirements: 1.You should be on a Samsung ROM (you canont flash this over CM9 or CM10 or any other custom rom) 2.You need to have CWM5 and ROOT Steps for installation: the rom and copy it in your sdcard. 2.go to CWM of your device and wipe all data,cache partition and dalvik cache 3.then install JELLYBEAN you are done in only 3 steps you are having jellybean ENJOY!!!!!!!!! Known Issues: 1.You Can’t download paid Apps from Play Store 2.Can only dial numbers starting with “0” 3.Input languages doesn’t work properly for some languages 4.Contacts FC 5.Maps FC 6.Out of memory error FLASH ON YOUR OWN RISK I AM NOT RESPONSIBLE FOR ANY BRICK AND ANY PROBLEMS!!!(as this is a leaked version)