mobile

At first i thought something was broken inside my brand now S6 but apparently its the OIS of the camera. When the camera is inactive the OIS is loose and when shaking the phone fast it makes a (clicking) sound. When I activated the camera the sound was gone no matter how hard I would shake the phone. I hope thats how the phone is made and I don't have a defective unit. Please let me know if anyone else has noticed that. Thanks.