so yesterday i was flying with a friend and his mavic pro. we were getting magnetic interference off and on. when i came down to land in the driveway i started to lose control and it started moving around more than i liked. It got over to a vehicle(wifes brand new 4runner) and hit it sending the drone down on its side with the propellers hitting the ground before i could get it shut down..actually going up under the car. Only visable damage was the propellers. i changed them with new ones that came with the drone. Now it will not hover very stable. It floats around more and one of the motors sounds like its stuttering a little causing the drone to twist a little in flight in a hover. Also on take off it barely gets off the ground..moving up and down. I have recalibrated everything. I have done all i know to do. And here i am looking for any suggestions before i send it in for repairs. Thanks in advance!