iPhone 5s stuck in continuous reboot loop
My iPhone 5s has always been great. IOS is current. My daughter was using it last night to stream Pandora, but had finished and it was just sitting there. It started a continuous reboot loop. I have tried the hard reboot (still just cycles) and I've tried plugging it into my laptop to sync with iTunes (never gives me the chance to enter my Passcode, yet iTunes gives me the error that I didn't enter my Passcode). I have also let the battery die and then restarted it, but it still just cycles. I've searched for answers, and they all seem to focus on the fact that this happens to iPhones that have been jailbroken, but mine has never been jailbroken.
iPhone 5s, iOS 9.2.1