Well it's a long time coming but I decided that I want to upgrade my S3. I have rooted-stock 4.1.2 with TWRP but I'm not sure on how to update while maintaining my personal data and root. Since so much has changed (I.E. Knox and such) I really need help. What's the process. What files do I need. And how do I maintain my personal data (apps and all). For the record I did read the guide but I was confused since I haven't done this for a while I don't want to screw my phone up (again). Any help at all is appreciated. Thanks!