dji spark imu calibration error -50
to publish negative findings so others dont have to waste time finding out again...
the next day still experimenting, and found most recent previous drone footage of the lowbat drone suddenly dropping to the the soft grass in d mountain.
hundreds of people were expecting me to do a drone shot but the drone didn't want to take off...
forgot to try it first
my backup older drone was also crashed, gps unit detached from dji phantom 3 standard.
so we just tried to take video and panoramic cellphone photo from the top of the vehicle