Guys, This morning I crashed my bird, my stupidity. This is embarrassing, I was shooting video footage this morning at about 18 ft high and decided to move my bird little bit backwards to obtain a better angle on my video, before making this move I should have looked what was behind it, when all of the sudden I heard a noise of my propellers rubbing against the tree branches. I could not get out of the tree anymore, the bird was totally entangled but the engines kept running making a loud noise. I immediately performed the infamous Combination Stick Command (CSC) to stop the motors, it worked, the engine stopped. I went to retrieve the bird from the tree, the propellers seem to be okay. Although there is one that has a little bit of wobble. At this point I am not going to take any chances and use the second fresh pair that came with the bird. Everything seems fine, except I was trying to fly the bird again with a fresh pair of propellers but I am getting messages to calibrate the compass. For some odd reason the engines will not fire up, the RC keeps telling giving me Compass Error - calibration required. Did I cause damage to the compass?.