Problem! After upgrade?! Without propellers: 1 - When I arm the Phantom and lifts it up and lean it forward, the rear motors revs up. That is wrong! The same backwards. It flips immediately. 2 - When I arm the Phantom and puts stick forward, forward motors revs up. That IS wrong! Dammit! Why? Reversing the transmitter shouldnt help, the Phantom leans (followed by a flip I guess) anyway.