I bought a replacement back for my iPhone 4 online, as did my wife. Hers is a pink metal back, and mine is brushed metal. Hers works wonderfully, and mine doesn't. When I take a picture with the flash at night. It blows out the entire picture. When I put the original white back on it is fine. I can't see what is causing this problem. So I ordered a different one, and this one is even worse. The only difference I can see, is that the original white iPhone back has a small square piece of foam surrounding the flash diffuser. The replacement backs don't have this. However, I took the one off the original iphone back and placed it on the new ones, and it didn't solve the problem. Does anyone know what could be causing this flash issue? Or does anyone know where to get a good quality back that will work with the FLash on the white iphone 4?