From previous experience, I make sure thatCare to post more details?
Did you charge before flight?
1) all the batteries have the correct firmware
2) all the batteries are fully charged
3) the battery in use is slotted in correctly
3) all the props are in good condition
I then start the drone and do a few weird moves (up down sideways etc) just to check if all is in order
I do a RTH setting and then only do I fly out.
I was about 200m out and 30m high when I turned back. As it was returning, I got a RTH warning. I cancelled it as the drone was a mere 60m away and continued returning. At about 30m distance it just fell out of the sky. Battery still 70%, RC disconnected. I could not use 'Find my Drone' as the RC indicated that it was not available. I tried to locate through the GPS coordinated with my other phone without luck.
Everything was ok and then suddenly the drone goes haywire.