While i was writing this,my Y6 was connected to MissionPlanner on my PC with usb…
In that time(some 30-45min) altitude displayed went from zero to 8,20m…my Y6 just standing on the table,i didn’t even touch him…
When i 1 min.later disconnected USB,connected thru mavlink radio,now MP shows negative altitude of -1,10…after 2nd restart altitude display seems normal again…
Can this be the same problem as this?
http://discuss.ardupilot.org/t/altitude-display-error/8588