keeps showing the apple logo but won't turn on
JA: What OS X (Operating System, e.g. Sierra, El Capitan, Yosemite, etc.) or iOS are you running?
Customer: I don't know, It's am iphone 7 plus
JA: Have you installed any updates recently?
Customer: No, I just used it for videoing and then I was just listening to Pandora while I was driving.
JA: What troubleshooting have you tried?
Customer: Just turning on the the power button and the volume button on the side
JA: Anything else you want the Mac Expert to know before I connect you?
Customer: I just want to see if I can get it started again