Ok, so about 15 minutes ago I was on my phone using snapchat when all of a sudden my phone decides to start showing lines across the screen. When my phone did that I hit the home button which made it even worse, so it then covered my whole screen. While getting angry and confused on why my phone was spazzing out I hit the lock button. After hitting the lock button it won't turn on it just remains a blue screen, but will still vibrate if called or text. Does anyone have any clue on what happened to my phone. I have a Iphone 5c.