I recently changed my phone number online through sprint. After changing my number I"m unable to make or receive calls or text. Data works fine no problems. I haven't rooted or put a rom on my phone, stock. I went through sprint customer service, technical support online and at the store. The guy at the store said I would have to replace my phone for $75, even though I didn't mess up my phone. I really don't think it's the phone that is the problem.