I have only had my iPhone 4S since march, so only just over 3 months, and i have problems with it now. I can't call anyone or recieve a call from anyone, and i can't send or recieve texts. I have tried the sim in another phone and it works, and i have tried restoring my phone to factory settings and i still have the same problems. This is not what i expect from a £500 phone. I imagine another top of the range phone like the Samsung Galaxy S 3 wont get these problems after only a few months of light usage. Any help would be appreciated, thanks. 
