I've had my DJI Phantom for about two weeks now. First, after a flyaway and a crash, I had to recalibrate. Took about a whole day before the props started working again. Now it seems every other day the props won't fire up and I have to go through the whole calibration exercise about 1500 times before it starts working again. Also, my H3-3D gimbal has never worked, it's constantly moving up and down, up and down during flight. Due to gimbal issue I fitted the DJI Phantom with anti-interference board, and guess what - the props won't start again. I am now in the middle of yet another day trying to get the thing to work. The Phantom is now constantly flashing yellow, but have connected both TX and Phantom to PC and calibrated about a billion times. I am a (very busy) videographer and was hoping this would add something nice to my films, but I haven't got the time for this, and am seriously thinking of selling it. A very frustrating experience.