I've been flying an indoor helicopter for several years but I'm a newbie to the Phantom. I've watched videos many times read through the user manual several times and thought I knew everything there was to do correctly. I waited for the GPS to find satellites I calibrated the compass and was all set the fly but then when I gave it for throttle there was no power for lift off. There was power if I were to go forward or back left or right but no power with the throttle all the way up. It just would not lift up off the ground. I'm thoroughly confused. Help!