Become a MacRumors Supporter for $50/year with no ads, ability to filter front page stories, and private forums.
this has been documented a bunch of times since the iphone 5 came out last year. its an issue with the camera itself (the purple dust particle). people got their phones replaced under warranty because of it. if yours is out of warranty, swapping out the camera may be the only option unless apple is willing to help you out with it.
 
This is serious design error. So many people around the world have this issue. Dust behind screens, cameras......:mad:
 
Register on MacRumors! This sidebar will go away, and you'll see fewer ads.