Helppp. . . Searched and could find nothing on this. Was cleaning the p4 today and saw this. Less than 50 flights. Only 3 weeks old. Afraid to fly Looking towards the battery (from behind), this is the right motor, has the black dots on it. Should I replace the motor? How do I find which motor? Dont want to send in for weeks so plan to replace myself. Any videos or walk-thrus????