My daughter recently started having issues with her phone so we took it to an independant service center. It turns out that when her phone was replaced for warrenty issues, Verizon gave us a cheaply reconditioned phone. It had non-apple parts and was in bad shape inside, which explained all of the issues we were having.
We had to pay $120 to have it fixed.
Beware Verizon customers - even though it looks like an iphone from the outside Verizon is supplying customers with junk. We expect to get a quality apple product, but instead we get problems. If it's not illeagal it should be!
