Hi....I have excitedly just bought my first quadcopter. I've followed the instructions to assemble it and believe it is all good to go. Unfortunately, when I try and fly it, I can't seem to get it to lift off the ground. I can apply maximum throttle and it still doesn't lift off. It has a gimble attached, but no camera, so in theory it should be able able to carry a significantly heavier weight than it currently does. I've double-checked the rotors and they are attached correctly, everything seems to be as expected, except that it doesn't lift off. I can't help but think there is something very simple that I have over-looked. Any ideas or help appreciated?