tanasit said:
Once you armed the motors, move the throttle stick to center and just wait.
My transmitter came with the throttle stick spring-loaded to self-center. Anytime I move it and release it, it re-centers. When I start the motors, and release the throttle stick, it centers (again) on its own, and nothing else happens - my Phantom stays on the ground, motors idling - doesn't matter how long I wait. When I'm ready to take off, I move the stick up from the center position, and get the Phantom in a hover. When I release the stick, it returns to center, and the Phantom does not move from its hover position until I move either stick again.
Once DJI updates their tutorial videos to show the re-designed transmitter with the throttle centered, most of these questions will disappear, I think. With existing videos instructing new Phantom owners to "slowly move the throttle stick up from the bottom position to take off", and the customer tries to place his throttle stick at the bottom position and it doesn't stay there, but springs back to center, confusion is bound to occur.
I was afraid to even try my first take off, because I could not make my throttle stick stay at the bottom position. I thought maybe I was supposed to hold it there against the spring pressure, but that made no sense, because the tutorial videos make no mention of doing that. I finally discovered that throttle "zero" for my transmitter is in the center, not at the bottom.
Until such time as the videos/documentation catch up with production, maybe a note or something similar in the box with new Phantoms explaining changes like this would be a nice touch.