hello. I have a problem. I am new to androids i got rid of my iphone 4s. So decided to one day Root my Android GS4. everything was okay until one day i decided to delete cache. The google store would not work. and someone told me to factory reset and delete the google account so i deleted the account and Factory Reset. while being rooted, lost my root. and now my phone does not work. I can't connect to wifi but it will display connections. I can't get signal which says no Sim. What should i do? im also thinking to send to the company at&t they said they will send me an other one and then when it gets here i have to ship mine.