Apparently some owners of iPhone 4 terminals had problems with the device's camera, more precisely with the way it takes pictures, some devices recording pictures that had a blue spot in the middle. Apparently only the device's 5 megapixel camera had this problem and no version of iOS released so far has solved it. iPhone 4 CDMA comes with iOS 4.2.6 and this version of iOS does not cause the same problems with the camera as in the case of GSM terminals. Some I say that the new version of iOS solved the problem, I would say that it could be a change to the terminal camera and those who have these problems will not find any solution in iOS 4.3.
Have you experienced any similar problems with your device?
