Guys help me ,i was out yesterday flying my bebop2, it was at 120 metres and then it happened .... it came down, it was displaying motor failure 2!!!!!!!! , when i retrieved and looked at it cleaned it down then went onto the troubleshooting pages on line ,the recommendation was clean check motors for debris ,which was done i now have the back left motor sticking then the front right then the back right and so on and so on ,,, thank for the forthcoming advice ...Bob