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Mavic 3 Ascending when flying forward.

BlairAir

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DJI has asked me to send the Mavic 3 - the ENTIRE Fly More Combo back for exchange. NOT because of the intermittent un-commanded ascension up to the max altitude, but for multiple defective accessories. Propellers with visibly wavy edges on the trailing edges - 2 badly, one slightly. Saw it the first time I unfolded those beautiful, long, slender metal arms while unboxing the combo.

Yes, the main length of the arms are cast in a lightweight metal alloy. The caps under the motors, and landing gear appears to be plastic. A quick test to identify a metal part is, in cool temps between 40-65° F is just to hold it to your cheek, which is more sensitive than your fingers. Metal is more inductive and will feel substantially cooler than a plastic component. I checked the camera module as well, as it looked like plastic. It is metal. I can't check the back of the gimbal this way. I hope it isn't polycarbonate like the Air 2 -DJI upgraded the Air 2S gimbal to some metal alloy, for the relatively big camera. At least it USED to look big, before this beast arrived.

But I digress. Often and annoyingly but I am seeking treatment.

The other defects were the muzzle (substitute your favorite derisive terms here) has the magnetic tab sewn on with thread that almost completely misses the elastic strap

and the bag has a fabric tumor right under the front magnetic flap.

The kit is shipping back today. DI says 4-6 days NOT including shipping. I am looking at a few weeks without my new drone. That's painful, but probably LESS painful than doing so later, assuming I would even get the opportunity again.
 

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BlairAir

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I have some interesting info. I will have to go through my flights from this past weekend to find where I saw it.

These were the scenarios that troubled me and sent me to this thread:

I would be flying at say, 100 ft. maybe a large circle, and it would keep ascending, not fast perhaps 3-5 feet per second, all the way up to max altitude. Thought maybe I was slightly pushing forward on left stick, but I fly with this controller on Mini 2 and Air 2. Then did it even with my hand off the left stick entirely.

On the weekend I saw it. I thought perhaps it was seeing obstacles way out (sensors can detect 200 meters vs. 20 on the MP2). Then this happened: I saw the radar lighting up for obstacles BELOW the drone. I was at 250 feet! I'm sure its not common, but there may be a production run with this, possibly fixable with FW, possibly not.

I am happy I am getting an exchange. I can't be playing around with the drone coming back and still doing it, sending it again, etc. Conditions were low sun, treetops illuminated, at dusk.

If I can identify the flight(s) logs will be uploaded.
 

DesertDroneWorks

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I would be flying at say, 100 ft. maybe a large circle, and it would keep ascending, not fast perhaps 3-5 feet per second, all the way up to max altitude. Thought maybe I was slightly pushing forward on left stick, but I fly with this controller on Mini 2 and Air 2. Then did it even with my hand off the left stick entirely.
This is the behavior I was seeing before I reflashed the firmware through the DJI Assistant. I guess I just got lucky because I haven't had the issue since (been almost a week). At least you're getting it swapped out.
 

bkushner

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I got a new drone and it does the same my old one did. I too think it has something to do with the sensors.. waves pop up on the radar when there is nothing near the drone and I'm high up..keep us posted.
 

DesertDroneWorks

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Well, I think I jinxed myself. Saw the issue again. I've been paranoid of it so I caught it immediately. Lost 10ft in about a second. Saw it on the screen and corrected.


1:36.7.... then started correcting at 1:38.1. No movement on the left stick at all.

I'll dig through a few other flights since the refresh but I've never had these issues with any other DJI product. It's really disheartening.
 

bkushner

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Well, I think I jinxed myself. Saw the issue again. I've been paranoid of it so I caught it immediately. Lost 10ft in about a second. Saw it on the screen and corrected.


1:36.7.... then started correcting at 1:38.1. No movement on the left stick at all.

I'll dig through a few other flights since the refresh but I've never had these issues with any other DJI product. It's really disheartening.
Why are you getting negative attitude when you return to your home point?
 

Meta4

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I got a new drone and it does the same my old one did. I too think it has something to do with the sensors.. waves pop up on the radar when there is nothing near the drone and I'm high up..keep us posted.
It won't fix your big altitude reading errors, but flying with the obstacle avoidance sensors turned off would be a way to check whether OA is causing the other issues.
 

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