1 when starting a message appears "check imu" phantom weak up for 2 minutes.

2 during the fly at 23 % of battery  the drone applying the autolanding without a reason. Because the altitude is low (7 meters) has crashed in front of me fortunately inside on little bush without damaging itself.

Any ideas? Can i exclude the autolanding procedure?

1 when starting a message appears "check imu" phantom weak up for 2 minutes.

2 during the fly at 23 % of battery  the drone applying the autolanding without a reason. Because the altitude is low (7 meters) has crashed in front of me fortunately inside on little bush without damaging itself.

Any ideas? Can i exclude the autolanding procedure?