Answer to: Why are there colorful lines on my screen?Well Alison, this might be because the pressure of the slam could have affected the layers inside of the phone. One of the layers consists of the things that keep the screen glowing. you could have permanently broken the phone. But don’t worry. The 2 hour drive to the apple store is worth it because they know how to fix it. So do I. I’m not sure if I could tell you because I don’t want you risking permanently destroying your phone..