try viewing on a pure white background, screen burn mainly affects people who leave their phone brightness on max nd the screen on for a long period of time, (most amoled screens of people who leave their screen on max plus always on, suffer from this) you have to look for it to see it, beware. Once you see it, it's hard to un-see. My phone does not have depleted pixels, but I saw it on the lumia 800 at CPW