Hello.
i have kind of the exact same problem as Piloteen, i just bought a dji phantom 2 with zenmus h3-2d and a 7 inch screen and other accessories for around 150 dollars, and i flew it about 2 times, and then i upgraded it to a 3 axis gimbal with a 600mw and everything worked fine. after about an hour i tried to start the drona back up, but then it started beeping just like yours, and after about 30sec of beeping it started smoking around the x2 x3 ports.. the battery seems to be working fine, about 3,9volt per each cell. what is the problem?
i have kind of the exact same problem as Piloteen, i just bought a dji phantom 2 with zenmus h3-2d and a 7 inch screen and other accessories for around 150 dollars, and i flew it about 2 times, and then i upgraded it to a 3 axis gimbal with a 600mw and everything worked fine. after about an hour i tried to start the drona back up, but then it started beeping just like yours, and after about 30sec of beeping it started smoking around the x2 x3 ports.. the battery seems to be working fine, about 3,9volt per each cell. what is the problem?