Iphone 6 Blue Screen Of Death

Hey guys! I have never had an issue with any of my Iphones until now. I can usually fix the problem if I do. However today my Iphone 6 started tuning blue, then black the back to the apple logo and it repeated all day. I don't have a windows laptop. I have a samsung chromebook so I cant fix it with windows or itunes. Besides going to the Apple store does anyone else have any idea what i can do?