Mavic 4 Pro - Obstacle Avoidance Issues

[fgphoto]

I don't have the drone in front of me, but I think it is ending in .200 if I recall. There were a couple long updates when I turned it on for the first time so it should be running the most current version

 

[maurotandoi]

I don't have the drone in front of me, but I think it is ending in .200 if I recall. There were a couple long updates when I turned it on for the first time so it should be running the most current version

Anyway, with firmware 0200, this is happening to many of my friends as well. The issue occurs when doing a Spotlight shot while flying backward and ascending. In that specific movement, the drone’s rear sensor picks up the right-side propeller as an obstacle and suddenly stops the flight. It’s now affecting almost everyone I know.

However, if you fly backward while maintaining the same altitude—level with the landing gear—the sensor doesn’t see the propeller, and the movement continues smoothly.

From what I understand, DJI adjusted the rear sensor’s detection threshold in 0200 to be much more sensitive—closer than it was in 0100. This change was likely meant to reduce false triggers in fog, which was previously detected as a “wall.”


Anyway, it was DJI themselves who advised me to downgrade to the previous firmware to avoid the issue.

I hope—and expect—that they’ll fix it in version 0300.

 

[dmcgrew]

Anyway, with firmware 0200, this is happening to many of my friends as well. The issue occurs when doing a Spotlight shot while flying backward and ascending. In that specific movement, the drone’s rear sensor picks up the right-side propeller as an obstacle and suddenly stops the flight. It’s now affecting almost everyone I know.

However, if you fly backward while maintaining the same altitude—level with the landing gear—the sensor doesn’t see the propeller, and the movement continues smoothly.

From what I understand, DJI adjusted the rear sensor’s detection threshold in 0200 to be much more sensitive—closer than it was in 0100. This change was likely meant to reduce false triggers in fog, which was previously detected as a “wall.”


Anyway, it was DJI themselves who advised me to downgrade to the previous firmware to avoid the issue.

I hope—and expect—that they’ll fix it in version 0300.

I seem to experience this issue flying straight ahead more than anything. I have a very hard time even hitting top speed. Like sometimes it will only go like 14 mph straight ahead with the stick pushed 100%. Other times it will try to go fast but then obstacle avoidance causes it to brake like crazy. Imagine going down the road and jabbing the brake every 2 seconds.. that's what its like.

 

[bwhip]

My issue was when I changed the setting from braking for obstacles, to flying around obstacles. Suddenly it flew very erratically, I seemed to have little control over the flight, even when no obstacles were around (just flying over water). Not a good feeling, so I switched it back to braking mode, and it seems to work better.

 

[PINEBARON]

FYI: Never had any issues, with any firmware versions on the Mavic 4 Pro or my A3S which are currently updated to latest firmware versions respectively. Both drones were ordered directly from DJI. There were no issues in backward flight either when I was recording fireworks from 393' AGL last Friday.