i've read all these posts. . one or two almost pertain to me, but not sure. yesterday my cx started twitching alot during flight. . . but would fly ok sometimes. put in the fresh battery, tried to fly it, it has an un-expected right yaw at all times. tried adjusting the pot . . no luck. worst of all, i can turn everything on, it will light up green on the 4 in 1 then go red, then green, then red. . crazy. i can turn the reciever off and the helicopter will still jump around and try and fly itself. im lost. . .

How do you turn the receiver off without also disconnecting power to the motors? Doesn't make sense. If you turn of the TRANSMITTER with the battery connected in the heli, it will definitely jump around. That part is normal.

Check the batteries in your xmitter to make sure they're fresh. Make sure your crystals are properly seated, both in the receiver and transmitter. Neall

i will check all the above. i just got frustrated with the thing going nuts while sitting on the ground. so i flipped the transmitter off

Keep us posted. Never flip the transmitter off with the battery connected to the heli. That GUARANTEES the heli will go nuts. Always turn the transmitter on first, then attach the battery to the heli. Then, reverse the procedure after the flight. Disconnect the heli battery, then turn the transmitter off. My heli behaves perfectly... but if I turn the transmitter off first, it goes nuts. That part is normal. If the heli goes nuts after having turned on the transmitter first, then the heli, for sure check your batteries inyour transmitter. It seems as if your heli doesn't know the transmitter is on. That's either a problem with the transmitter, or the heli receiver. Neall

ok, change batterys in reciever. . powered up correctly. . when i apply collective, the first few clicks of it are normal. after that the helicopter starts acting spastic and no matter how much right "pedal" i apply, it doesnt have the power to counteract it. . the helicopter is extremely spastic. dont know what to do. its been flyin perfect for months, now this

when powered up correctly, what's going spastic? The motors? One servo? Both? Or everything? You may have to remove the body to see exactly what's going on. When you first power up the heli... before you move any of the xmitter sticks, are things quiet? Neall

no, the motors try and spin as well as servo's acting crazy.

That's how it behaves if the transmitter is turned off... does having your transmitter on make ANY difference in its behavior? I wonder if it quit transmitting.

acts ok when tx is on... but it has killer left yaw. . i thnk the motor is going out for one, and i think the tx batterys were low. i tried switching 4in1 plugs. motor spins slow on both slots, but other motor spins fast on both holes.

performing that test made sense. good work. I wonder why the servos twitch though. Is that still a problem?