I don,t and cannot use care refresh the only instance where it actually worked was with the spark and the battery disconnecting during flight the second crash with the spark for the same I was flying litchi software and they wouldn,t consider fixing it at all,I have a mavic pro still out there again litchi mission flights where I later found that it had been a victim of mag interference of milipias or volcanic formation after several flights i found one area where gps cordinates were up to 300 yards off and down ward vision height was 90 ft off so if you mission height was set 100 you were 10 feet off the ground I tested it some 76 times , the pro is still in there some where but DJI care refresh refused to listen to any of this