maybe there is something affected your camera signal, try to get close to your drone and get far away from high-tension electricity cable and tall buildings
Congratulation, You got a Phantom 4 dedicated gift card from DJI Store, go to have a look! -- I can't find the gift card in DJI GO, maybe they make a mistake :(
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U can buy DJI Care for insurance DJI Care - Keep Flying It will cover all the repair fee from flight crash
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