Reference documentation here
If after replacing the controller the motor is only running backwards at one speed and it stutters this is the symptoms of using a magic pie controller on a smart pie motor and you need to reprogram the firmware using a golden motor USB program cable.
If after replacing the controller the motor is only running backwards at one speed and it stutters this is the symptoms of using a magic pie controller on a smart pie motor and you need to reprogram the firmware using a golden motor USB program cable.