After upgrading both the phantom2 and the RC to the latest firmware it will no longer take off. I looked at some previous posts and they seemed to recommend calibrating the RC's control sticks. I had already done this as part of the firmware update, but did it again just to make sure. Calibrated the RC both using the RC Assist software and the Phantom2 Assist software. In the software, the E channel goes up to 1000 when raise it upwards for full lift. And when I let go of the stick, it returns to 0. Switched the Vision to NAZAM mode, using GPS and ATTI, still no lift. But when switching the manual, the phantom takes off fine. Only problem there is that I don't have the skill needed to fly it manually! Tried calling DJI's support phone number, but surprise surprise, nobody on the other line. Any ideas? TIA.