AS I SAID I HAVE MADE A COMPLETE VIDEO ON SAMSUNG Z2 AND IN THAT VIDEO I PERSONALLY SAID WHAT I FEEL SOOO IF YOUH WANT TO KNOW YOUH CAN GO ON YOUTUBE AND TYPE DEVICE TECHNO AND YOU WILL GET THAT VIDEO. AND ALSO YOU WILL GET TO KNOW ABOUT ITS BUILT QUALITY CAMERA QUALITY AND MANY MORE THINGS SO .