Attitude failure (roll)

PX4 Autopilot
1

yesterday when i was testing my drone with PX4. i faced a abnormal behaviour that the drone didn’t take off on Altitude hold instead of that it flips and crashed and the messages was attitude failure (roll).

here is the log file
https://logs.px4.io/plot_app?log=36590d92-75a1-411a-8b1f-1dcb55f82d4f

2

Has the drone been flying ok before this flight? And have you made any chances before this flight?

3

drone is flying Ok on ardupilot, but as soon as i changed the firmware this happens on first flight.

4

Hi

Your motors are reversed. Check the spin directions