Okay, so, I got an iPhone 4s for christmas (2012). I've had nothing but problems with it. It worked the first 2 days. But then, i started getting no service. Instead of saving Verizon 3G it said ''no service'', ''searching'', or ''roaming''. (but mostly no service) At some places I got service but at my houses i could'nt call or text, I could only really use apps and the internet. I've been to the Apple store 3 times, and Verizon twice. They gave me a new phone but it still has the same problem. I'm getting really frustrated and mad. Is there something I should do, or something i'm doing wrong? Please help. Thank you
Added (1). And also my dad has an iPhone at his house and his works perfectly fine. My friend came over the other day to my moms house *where i also can't make calls* and hers worked, too.