White spots aluminum back of iphone 5
My iphone had small white spots on its back. At first, I thought that was some dirt, but over time the number began to increase. Today reach 20 spots with 8 large (0.5 mm or 1/50 "). I took a photograph enlarged by Zeiss stereoscope, and then I realized it's a problem of aluminum discoloration.
iPhone 5, iOS 6.0.2