so my friend download an app and didn't read anything about it before he installed the app. The app was suppose to replace the home launcher but he was suppose to install another app before he installed it but he didn't. I have tried Odin, Kies, and Heimdall with no luck. I have tried them on different computers and with different cables. His phone is a SGH-I337, yes it is rooted but only for one app that was installed that doesn't affect anything. But now it only go to the download screen with the android man even when booted up normally it only fails the [auth] on Odin and it wouldn't even connect to Kies. Any help would be GREAT, he is only giving me 2 day to try and fix it for him then he is going to buy a new phone. Thanks in advance EVEN IF ITS JUST GUESS I'll still give it a try.