I have an unlocked AT&T S3 I747 using in the Caribbean and cannot upgrade the software. I rooted the phone but still cannot get the update and don't know where to go from here. Help needed
I would search for it on SamMobile. Flash the tar with Odin. I cannot promise it won't wipe your data so make a backup. You could also use Kies for backing up, and try seeing if Kies will let you update.