have you messed with the plugs in the mixer board? If so don't unless your trying to fly inverted I have a couple times but when I want to I just look at my t-rex 450 but if your just starting don't look at that until the distant future once you feel confident in this ask me and I will tell you how to invert it so you can get used to a little acrobatic flying then after that I would move on to the Blade Cp2 or go straight to the blade 400 if you have the money.