Solution: 1.Problem: The helicopter is unstable and shaking during flight.
Countermeasure: First,use the ST.TRIM underneath the right lever to adjust the flying balance and keep the helicopter flyig stably. Second,check the screws which are used to fix the blades are loose or not,if so,please screw them tight.Last but not the least, please check the stabilizer is deformed or not.
2.Problem: Tail blade does not work.
Countermeasure: First, please check the tail blade is seized or glued. Second, please check the wiring is diconnected or not for the tail motor.
3.Problem: Helicopter can not fly high enough.
Countermeasure: First, please check the helicopter is powered enough or not, should be up to 8.0V. Second, please check whether the blades are deformed or broken. Last but not the least, please check the gear is loose or not. You can replace the parts with new ones and then fly the helicopter high.
