I crashed my Mavic backwards into a building. It tumbled, but managed to recover into a hover. But then it wouldn't fly forwards due to obstacle avoidance: the forward vision system constantly thought there was an obstacle.
Aside from torn up props and some seemingly minor cosmetic damage to the shell, the major issues are:
- heavier damage/abrasions to the front right vision sensor area (see photos)
- "Vision system error" in DJI Go (see screenshots) and the constant "obstacle avoidance" issue.
DJI Go said to calibrate the vision system in DJI Assistant 2 (see screenshot). After doing so, the vision system / obstacle avoidance issue went away: it seems to fly normally again! I took it out for a careful, short, low test flight. Obstacle avoidance still appears to function normally, and handling seems fine. When I did the Assistant calibration, I saw that the right vision sensor wasn't obscured (though actually there was a slight vignette in the very top right corner of the left sensor...).
My guess is that the crash knocked the camera slightly out of alignment, and re-calibration compensated for it again. I have the DJI Care Refresh package, but I'd rather not use it if not necessary, and instead just swap out the props and keep flying my battle-scarred Mavic.
Thoughts? Can you think of potentially hidden issues that'll cause problems?
Thanks!
Main damage to the right forward vision sensor:
You can see the asymmetry of the housing compared with the left:
DJI Go screenshots:
"Vision System Error" (not just due to low light, it said this outside as well)
"Forward Vision Sensor Calibration Error. Precision Hovering and Obstacle Avoidance may fail.
Recalibrate Vision System by using DJI Assistant 2, or use DJI GO for urgent issue."
Aside from torn up props and some seemingly minor cosmetic damage to the shell, the major issues are:
- heavier damage/abrasions to the front right vision sensor area (see photos)
- "Vision system error" in DJI Go (see screenshots) and the constant "obstacle avoidance" issue.
DJI Go said to calibrate the vision system in DJI Assistant 2 (see screenshot). After doing so, the vision system / obstacle avoidance issue went away: it seems to fly normally again! I took it out for a careful, short, low test flight. Obstacle avoidance still appears to function normally, and handling seems fine. When I did the Assistant calibration, I saw that the right vision sensor wasn't obscured (though actually there was a slight vignette in the very top right corner of the left sensor...).
My guess is that the crash knocked the camera slightly out of alignment, and re-calibration compensated for it again. I have the DJI Care Refresh package, but I'd rather not use it if not necessary, and instead just swap out the props and keep flying my battle-scarred Mavic.
Thoughts? Can you think of potentially hidden issues that'll cause problems?
Thanks!
Main damage to the right forward vision sensor:
You can see the asymmetry of the housing compared with the left:
DJI Go screenshots:
"Vision System Error" (not just due to low light, it said this outside as well)
"Forward Vision Sensor Calibration Error. Precision Hovering and Obstacle Avoidance may fail.
Recalibrate Vision System by using DJI Assistant 2, or use DJI GO for urgent issue."