One night, I was watching a YouTube video, and I realized that my iPhone 6s with iOS 9.3.4 wasn't charging even though it was plugged in. I made sure everything was plugged in, and it was. Then, I rebooted my phone to try to fix the problem. Once it started up again, the top hotbar dissapeared. On it's own, it tried to restart itself. Shortly thereafter, it got stuck in a reboot loop. Eventually, it booted into recovery mode. I waited 15 minutes or so, staring at the dead phone. Then I tried to boot it up again. It worked. All this time, I had iOS 10 downloaded, but not installed. For a few weeks, it kept saying "iOS 10 ready to install" every day or so, even though iOS 10.0.1 was out. Anyway, please help me. My mind is boggled and I'm not sure what to do. Here's a big thank you to those of you who give me suggestions on what to do.