I experienced the "Drone flipping upon takeoff" issue just after flying it 3 times. My AR Drone 2.0 Elite Edition was brand new out of the box. I charged the battery fully. Downloaded the App fresh with the latest version recommended by Parrot. I started up the AR Drone 2.0 outdoors WITH the outdoor hull on it. After pilfering through countless "Incorrect prop placement" threads, and a pile of other incorrect useless threads that all misdiagnosed the issue. Here's a list to put in your back pocket for "that day". Not "if" it will happen to your AR Drone 2, but definitely a matter of "when" it does happen.... [u][b]Possible causes for "Flip during takeoff" IF your drone is brand new out of the box:[/b][/u] 1. [b]Damaged, Unbalanced or Incorrect propeller blades [/b](Yes, there are certain types of blades per corner, and it matters. For those who may not be familiar with quadcopter blade orientation.) 2. [b]Electric motor failure[/b]. The electric motor on any of the prop corners may be damaged. Each...