Hi Guys!

I just bought a mini 2 yesterday. I activated the drone, the care etc. Did the firmware upgrades as well.
Today i was taking a photo over a valley. Suddenly the drone rotated and started to yaw at 23m/s speed.... it crashed into the woods. I was able to find it... 6 props damaged, one of the gimbal holding points broke.
Looking back the log video, It was sure that after I pressed photo button, it went crazy... no sticks were pushed, it was getting into high speed yaw, did not react to the controller.
It was in line of sight, so birds, and any other obsticles did not hit it..
How can I upload the log for the forum experts?
Thanks in advance..

You wrote in wrong section! This is Spark Discussion!

Hello there. I am sorry to read and to know what happened to your DJI Mini 2. Since there was a crash that happened before. It would be best to contact our DJI support team at https://www.dji.com/support for further assistance. We have a team that will do there best to assess the said DJI drone and give out the best resolution for this issue. Again, I am sorry for this trouble and thank you for your understanding.

I just lost mine in the ocean!

Oh and upload flight here here https://forum.dji.com/thread-204080-1-1.html

Sorry to hear about the crash, Question is how did you damage 6 props?

Suren Posted at 11-19 20:29
Sorry to hear about the crash, Question is how did you damage 6 props?

He must be quite talented (or not.)

Scarves UP Posted at 11-19 20:46
He must be quite talented (or not.)

Suren Posted at 11-19 20:29
Sorry to hear about the crash, Question is how did you damage 6 props?

I think he meant 6 blades ;-)

How can I upload the log for the forum experts?

To get to your flight data, go to: https://www.phantomhelp.com/LogViewer/Upload/
... where you'll find instructions to upload the data to that site and it will give a report
For help interpreting the data you can post a link for the report here.
Or just post the .txt file.

Your description sounds like it could be a yaw error issue.
Could you also describe the spot you launched from.

GaryDoug Posted at 11-19 21:35
I think he meant 6 blades ;-)

GaryDoug Posted at 11-19 21:35
I think he meant 6 blades ;-)

I thinks so too

Sorry for your loss, did you try a RTH when it went awry?Also check DGCA3's post, because these seem likely to be related. Both hit speeds greater than max, and both Yawed.
Mini 2 Takes Off Like a Bat Out of Hell

Sorry for your loss.  Hope you find resolution.

flight log

I uploaded the log .

Can Some expert look at it?

Thanks.

And yes. 6 blades, not props but I dont think that was the point of my post...

fansd58737bb Posted at 11-20 23:33
flight log

I uploaded the log .

The issue starts around 7:04.5.
Your drone was hovering and you slowly rotated it clockwise from a heading of 301.7°.
When it reached 326.2°, the drone snapped around 180° and then continued rotating slower, in a clockwise direction to a heading of 182.7°.
As it was doing this, the drone started to accelerate without corresponding joystick input and reached 22.9 m/s by 7:11.8, flying sideways toward the east in a smooth curved path until it crashed at 7:19.6.

Any messages following that are a result of the crash impact and not related to the runaway incident.

This incident has all the characteristics of a yaw error runaway.
They are usually cause by starting up the drone where the compass is deflected by something made of steel very close by.
The IMU initialises the gyro sensors, taking a false heading from the compass.
While you fly without big changes to the heading it seems OK but if the drone takes heading that is different enough from the false heading, the flight controller has great trouble with the data from GPS confliction from the false data from the gyro sensor.
The drone ends up running away on a curved path, usually very fast as the flight controller realises it is getting off course and trying to correct.
But because of teh false heading data from the gyro, it keeps getting further off course and tries to correct more etc, etc.

Can you describe your launch point?
What was the surface and was there anything steel within 1-2 metres?

Nothing metal, it was in a park. I launched it about two meters from a wooden bench. At the beginning  I flew out and tried rth, it was no problem at all. After it came back, Without landing I sent the drone out for a photo. Everything was ok until I took the photo. After that it went crazy.. It had 27 sat-s. IDK what caused the yaw.....

fansd58737bb Posted at 11-20 23:33
flight log

I uploaded the log .

Hi,

Wow, what a nasty experience in this flight.

This is a case for DJI !  i have seen this few times before on a P4 but not a MA and MM`s .

Your compass changed in flight 180 degrees !  from 362 to 151 while yawing right with 65% input on the stick.

Ofcourse after this all SW flight corrections to your 4 motors are incorrect!  so a fly away due to wrong compass data to the actual heading of your drone.

Get DJI support to investigate your flight, imo it is a warranty claim.

As it happend 7 minutes in flight, i rule out a compass errror due to some interference at start.
Before in flight you shoot a pano ; drone changed 9 times heading succesfully with 40 degrees steps, so all parts (compass , gyro etc) did worked all oke.

See my chart ar 3230; purple line is drone compass heading.
cheers
JJB

JJB* Posted at 11-21 02:09
Hi,

Wow, what a nasty experience in this flight.

Interesting .... it certainly is a strange incident.

IMHO a warranty claim, drone just go mad mode midflight (as JJB pointed and proved)
buy him a beer or somth ;) and let us know how DJI did act

Thanks guys for the deep investigation! I have already took it back to the shop in Hungary. They looked at my log data as well, they never seen this behavior before.  The drone was already sent to DJI german HQ. I have care for the mini, but i was told its 100% warranty issue for a 2 day old drone.

I had the same issues with my Mini 2. I don't know what happened but i think those are made to broke down. I will wait for the support team to check my drone but dafinetlyy they will tell me that it was my fault

Mrshuer11 Posted at 3-29 06:05
I had the same issues with my Mini 2. I don't know what happened but i think those are made to broke down. I will wait for the support team to check my drone but dafinetlyy they will tell me that it was my fault

Dont worry mate.
In my case (damaged drone was sent to DJI germany from Hungary), without any question they replaced my mini 2 for a brand new in warranty, also activated my care on the new one. It took 2 weeks, but it was a flawless procedure. Maybe I was lucky but I had a good experince with DJI customer care.

Wish U the same