I am wanting to see if anyone has had this problem or any advise. A couple weeks ago I got a message on phone saying something was wrong with sd card. Clicked on it, asked if I wanted to format card. I didn't want to do that knowing it would delete everything, so I didn't bother it. since then I don't have a signal when I am at my house. Also cant send txt. Usually says I don't have a mobile connection. My phone is useless when I am home. When I leave, it works fine. If I want to use anything on phone while I am home, I have to turn on wifi. I have called Verizon 2 times about this. I made them call my phone both times to see if they could hear me. and of course they could. So we would think phone was fixed, then next time I go to make a call...the person can't understand anything I am saying.