I know people say that the rattle in the iphone 5/4s camera is normal and that there is a floating lens or some crap like that and it will make a rattle noise. But I know of iphone's that do not make that noise. So that means it's not entirely normal since not all phones make the rattle. Can I go into an apple store and ask them to replace the iphone for another one because of this rattle? Has anyone here tried to do it?