During my latest flight my quadcopter made several flips and crashed from 40 meters high. Reviewing the logs I couldn't understand which part is responsible for the crash. All parts were found in good condition. I mean the flight controller, ESCs, motors, Propellers etc. Only an arm broken and the landing gear. Lucky me but I am anxious about flying that thing again. So I could use some help.
My setup is:
Frame: Tarot 650 IronMan
Motors: 4x Sunnysky X4108S 480kv
ESCs : Turnigy Plush BlHeli Firmware 25A
Propellers: Tarot 1555 Folding props
Flight controller: APM 2.6 clone
GPS: uBlox lea 6h
Battery: Turnigy 5000 4s 30C
Radio transmitter: Turnigy 9XR
Radio receiver: FrSky D8R-II PLUS 2.4Ghz 8CH
I have uploaded my log file if anyone needs it.