Screen black out iPhone 5s
On Thursday I was listening to a podcast (version 2.2.1) as work and paused it for a moment. When I went to play it back my screen was black and none of the buttons worked. I tried plugging it into iTunes, hard resetting, and even just waited for the battery to completely drain, but nothing worked. I thought my phone had completely died on me. I received a new phone, which thus did the same thing today, however I was able to get my phone to come back on after an hour and a half. Has anyone else experienced this as well?
iPhone 5s, iOS 8.3