Had a crash today.....pretty big one but only the blades broken. Repaired cleaned down but gimble for camera broken. However when i start it up and start to put throttle on it wants to shoot up to a great height. This happened before the crash and lost all control except for power. Had to cut the motors and let it fall back to earth. Wondered if anyone knew what was up and how to fix? Didnt calibrate the compass prior to crashing. Did end up in some trees which was no great smash just before the big one. Help much appreciated.