Today I picked up my phone and couldn't turn on the screen. I remember it had at least 70% battery left last time I checked, so I knew it wasn't dead. Tried a bunch a stuff realized the phone was on, just not the screen. I could unlock via Touch ID. I could toggle the ringer/vibrate switch, and I could access Siri. So I don't know what was going on. I've never had this happen to my other iPhones so I wasn't sure what was wrong. I did a hard reset by holding the home and power button. It seems fine now though. Is this a known problem? Nothing showed up in a Google search. Anyone else have this happen?