Hey! Suddenly there is a black squiggle in the middle of my camera (every picture) it just seemed to appear there and didn't happen as the result of a drop! My phone is a nexus 4 and I just love it but I have 4 cute little kids to take pictures of and I don't want a black mark on their little faces! Would there be coverage for anything like this? I've attached a picture for an example! Look at Mister's chin!