Hello i am new to this forum so im not sure if this is the right place to post this. I have a Samsung Galaxy s3 with a problem. When i go to star the phone up it says something about failing to root and then i get no in or out phone signal nor can i make or receive call or txts. If anyone could help me on what to download or put in the phone to make it work again would be great. I saw something about Radio Rom but wasnt sure. Cheers guys.