I attached log file URL (18mb), if someone could review and let me know if anything is off or wrong.
Towards ending of flight, I had no throttle. it went to 0% and no matter what range I gave it. Nothing.
It's possible I had no RC controls and not just throttle. But happened so fast, I only know I had no throttle. Then it went into a slight spiral into the ground.
This was flying so well.