Stacked my p4 awhile ago, kicked an aftermarket prop off at about 70 feet up and death spiraled into the dirt. 4th time its gone down, 1st time I couldn't afford to fix her right away. Life happened and was gone 3 years. By the time I got home had sleep death batteries and a busted baby. Got it flying again until I did a imu calibration a few months later. And now thats where she is stuck. Believe I gota replace the flight board this time and a yaw motor. Does anyone know if these new sellers are selling working stuff or scamming us out? If I can find a decently priced semi cheap flight board im tearing her down again and trying to save her.....let me know. Much apriciated!