I woke up this morning to find that my iPhone stuck on searching for a signal. I can connect to wireless however, but that doesn't seem to do anything. If I open Safari and try to go to a website, as soon as it loads, it crashes. I've tried restarting multiple times to no avail. I loaded iTunes to do a restore but it says I cannot do so without disabling Find my iPhone, which I cannot do since it keeps saying Verification failed whenever I try to disable it, same goes for disabling iCloud all together. What is going on?