Dji mini 2 hardly crashed after app update
12Next >
3634 61 2021-2-1
Uploading and Loding Picture ...(0/1)
o(^-^)o
bnenadic
lvl.2
Flight distance : 344154 ft
Croatia
Offline

Just enjoying with my children at balcony, and trying to make us in position for quickshot as the drone was hovering stably, suddenly... In a 1 second like someone took over all control over drone and fully accelerated in wall!!!!
In later hours that day I was wondering if is possible to have some extra evil neighbors with some signal jammer or don't know what!?
Today I'm going to the service house.

http:///storage/emulated/0/DJI/dji.go.v5/DJI FLY/Video/go_compose_video_1612245299941.mp4
2021-2-1
Use props
George GR
Second Officer
Flight distance : 2990653 ft
Greece
Offline

I'm sorry to hear that
the link does not work
2021-2-1
Use props
BaliSkies
lvl.3

Australia
Offline

With all due respect, the crash would not have been caused by you updating the Fly app as your title suggests. Updating an app does not result in a drone crashing.
2021-2-1
Use props
DJI Stephen
DJI team
Offline

Hello there bnenadic. I am sorry for the trouble this has caused and thank you for reaching out. Since this unfortunate event happened to your DJI Mini 2. It would be best to contact our DJI Support Team for further assistance. You may contact or DJI Support Team at : https://repair.dji.com/repair/index or via http://www.dji.com/support to open a case. Again I am sorry for the trouble and thank you.
2021-2-2
Use props
bnenadic
lvl.2
Flight distance : 344154 ft
Croatia
Offline

BaliSkies Posted at 2-1 23:35
With all due respect, the crash would not have been caused by you updating the Fly app as your title suggests. Updating an app does not result in a drone crashing.

Actually I hope the crash  is my fault, if that's the case I'll buy another Mini 2, but...
Stragilng to upload video, just want to hear from  few others  with greater experience where did I go wrong!
2021-2-2
Use props
George GR
Second Officer
Flight distance : 2990653 ft
Greece
Offline

bnenadic Posted at 2-2 00:17
Actually I hope the crash  is my fault, if that's the case I'll buy another Mini 2, but...
Stragilng to upload video, just want to hear from  few others  with greater experience where did I go wrong!
If you can upload the flight log
https://www.phantomhelp.com/LogViewer/Upload/
2021-2-2
Use props
BaliSkies
lvl.3

Australia
Offline

bnenadic Posted at 2-2 00:17
Actually I hope the crash  is my fault, if that's the case I'll buy another Mini 2, but...
Stragilng to upload video, just want to hear from  few others  with greater experience where did I go wrong!

Oh I definitely don't want to imply that the crash was your fault. It may have been a malfunction somewhere in the hardware, who knows. If you can upload the flight log, one of the experts here can analyse it and tell you more about possible cause.
2021-2-2
Use props
DAFlys
Captain
Flight distance : 312090263 ft
  • >>>
United Kingdom
Offline

Your link doesn't work.
2021-2-2
Use props
JJB*
Core User of DJI
Flight distance : 12225059 ft
  • >>>
Netherlands
Offline

Hi,

My guess is a compass related fly-away *....but guessing is not a way to analyse what really happend, so upload your flightlog to get the answer.

* if so, pilot error, flying away from a balcony is never a good idea....for many reasons.
a) compass errors as most likely iron in the balcony upset the drone compass at powering up.
b) RTH setting is akward ; or it must be the most upper balcony with free air above it.

use link in post #6.

cheers
JJB

2021-2-2
Use props
OverCombination
lvl.2
Flight distance : 19298 ft
Australia
Offline

DJI Stephen Posted at 2-2 00:08
Hello there bnenadic. I am sorry for the trouble this has caused and thank you for reaching out. Since this unfortunate event happened to your DJI Mini 2. It would be best to contact our DJI Support Team for further assistance. You may contact or DJI Support Team at : https://repair.dji.com/repair/index or via http://www.dji.com/support to open a case. Again I am sorry for the trouble and thank you.

Why do you respond to almost every single thread, but not this one...

https://forum.dji.com/forum.php?mod=viewthread&tid=228676&extra=&page=6#comments
2021-2-2
Use props
bnenadic
lvl.2
Flight distance : 344154 ft
Croatia
Offline

OverCombination Posted at 2-2 02:09
Why do you respond to almost every single thread, but not this one...

https://forum.dji.com/forum.php?mod=viewthread&tid=228676&extra=&page=6#comments

https://youtu.be/ioDs1KUSswU
2021-2-2
Use props
bnenadic
lvl.2
Flight distance : 344154 ft
Croatia
Offline

Somewhere in 7th or 8th second, from stable hovering starts moving to right then full speed left
2021-2-2
Use props
bnenadic
lvl.2
Flight distance : 344154 ft
Croatia
Offline

JJB* Posted at 2-2 02:04
Hi,

My guess is a compass related fly-away *....but guessing is not a way to analyse what really happend, so upload your flightlog to get the answer.

Compass calibration made just before flight, 1.5 min before crash. Made away from metal objects, and massage calibration successful  
2021-2-2
Use props
yogi053
Second Officer
Flight distance : 26104915 ft
United Kingdom
Offline


I think I posted this before, Phantomhelp cannot upload files for the Mini 2 since app update 1.2.2.
The website owner, I believe, is still working on a fix to overcome this.
2021-2-2
Use props
JJB*
Core User of DJI
Flight distance : 12225059 ft
  • >>>
Netherlands
Offline

bnenadic Posted at 2-2 02:40
Compass calibration made just before flight, 1.5 min before crash. Made away from metal objects, and massage calibration successful

Oke, looking forward to see your flightlog.

https://www.phantomhelp.com/LogViewer/Upload/

this way i can see the log, use the *txt to read out.

cheers
JJB
2021-2-2
Use props
bnenadic
lvl.2
Flight distance : 344154 ft
Croatia
Offline

https://youtu.be/HOZl05AsUX4
2021-2-2
Use props
bnenadic
lvl.2
Flight distance : 344154 ft
Croatia
Offline

bnenadic Posted at 2-2 02:57
https://youtu.be/HOZl05AsUX4

Don't get me wrong, I really , really love this drone. Perfect in size, cost, possiblity, looking forward for new firmwares, tracking ...
I ordered tens accessories for mini 2, most of them didn't arrived jet.
2021-2-2
Use props
George GR
Second Officer
Flight distance : 2990653 ft
Greece
Offline

bnenadic Posted at 2-2 03:10
Don't get me wrong, I really , really love this drone. Perfect in size, cost, possiblity, looking forward for new firmwares, tracking ...
I ordered tens accessories for mini 2, most of them didn't arrived jet.

https://forum.dji.com/forum.php? ... 964&pid=2409932
2021-2-2
Use props
bnenadic
lvl.2
Flight distance : 344154 ft
Croatia
Offline

George GR Posted at 2-2 03:20
https://forum.dji.com/forum.php?mod=redirect&goto=findpost&ptid=234964&pid=2409932

https://www.phantomhelp.com/LogViewer/IPJ4G758QTA624SMYX08

https://www.phantomhelp.com/LogViewer/IX2VEQAHD8VLDGU8Y5J0

https://www.phantomhelp.com/LogViewer/8KFT5ENF3W8J4376PTVX

https://www.phantomhelp.com/LogViewer/10LUYTTFWBFKXIE6I82Y

Please feedback, is it ok , or need to do it again
2021-2-2
Use props
George GR
Second Officer
Flight distance : 2990653 ft
Greece
Offline


no!!do not change the file name!
upload here please https://airdata.com/
2021-2-2
Use props
JJB*
Core User of DJI
Flight distance : 12225059 ft
  • >>>
Netherlands
Offline


Hi,

Not sure if you did it correct, flightlogs has the following format

for example: "DJIFlightRecord_2021-01-16_[12-30-59].txt"

your logs started with crash...., so you did change the original file or ?
In your log.txt  a link to github....
Only the original file, from your mobile device is 'readable', or did you not use the DJI FlyApp for this flight?

cheers
JJB
2021-2-2
Use props
bnenadic
lvl.2
Flight distance : 344154 ft
Croatia
Offline

JJB* Posted at 2-2 05:58
Hi,

Not sure if you did it correct, flightlohs has the following format

Did not, having this upload from mobile quite difficult
2021-2-2
Use props
bnenadic
lvl.2
Flight distance : 344154 ft
Croatia
Offline

Possible to do this over PC?
2021-2-2
Use props
bnenadic
lvl.2
Flight distance : 344154 ft
Croatia
Offline

bnenadic Posted at 2-2 06:02
Possible to do this over PC?

Screenshot_2021-02-02-15-04-33-784_com.android.chrome.jpg
2021-2-2
Use props
JJB*
Core User of DJI
Flight distance : 12225059 ft
  • >>>
Netherlands
Offline

bnenadic Posted at 2-2 06:02
Possible to do this over PC?

yes, well i use wifi transfer...so i link my mobile device to my PC via wifi.
Than on the PC i can view the content of my phone and copy paste flightrecord to my PC
2021-2-2
Use props
George GR
Second Officer
Flight distance : 2990653 ft
Greece
Offline

bnenadic Posted at 2-2 06:02
Possible to do this over PC?

connect the mobile to the pc then go to the path DJI/dji.gov5/FlightRecord/
and then the txt file without rename it the txt file
2021-2-2
Use props
bnenadic
lvl.2
Flight distance : 344154 ft
Croatia
Offline

JJB* Posted at 2-2 06:05
yes, well i use wifi transfer...so i link my mobile device to my PC via wifi.
Than on the PC i can view the content of my phone and copy paste flightrecord to my PC

Is this the log you are talking about
IMG_20210202_150739.jpg
2021-2-2
Use props
George GR
Second Officer
Flight distance : 2990653 ft
Greece
Offline

bnenadic Posted at 2-2 06:08
Is this the log you are talking about

yes yes yes
2021-2-2
Use props
JJB*
Core User of DJI
Flight distance : 12225059 ft
  • >>>
Netherlands
Offline

bnenadic Posted at 2-2 06:08
Is this the log you are talking about

almost there...

now to upload that file, or put a cloud-link on here to the file
2021-2-2
Use props
bnenadic
lvl.2
Flight distance : 344154 ft
Croatia
Offline

JJB* Posted at 2-2 06:28
almost there...

now to upload that file, or put a cloud-link on here to the file

https://drive.google.com/file/d/1-HmNNvUwPFtKWxK6GTIv6tOiruo-E0L3/view?usp=sharing
2021-2-2
Use props
bnenadic
lvl.2
Flight distance : 344154 ft
Croatia
Offline

bnenadic Posted at 2-2 06:35
https://drive.google.com/file/d/1-HmNNvUwPFtKWxK6GTIv6tOiruo-E0L3/view?usp=sharing

Hope it is ok
2021-2-2
Use props
Skynet5
lvl.3
Flight distance : 20253 ft
United Kingdom
Offline

what is odd with that video is it just goes mad.  Its almost like the drone had a software crash.
2021-2-2
Use props
JJB*
Core User of DJI
Flight distance : 12225059 ft
  • >>>
Netherlands
Offline


Hi,

yes,

All flight without a GPS lock !  Zero satellites and ofcourse zero for reception.First part in OPTI mode, so stable in flight.
At the end it lost visual reference, thus in ATTI mode, in ATTI mode no 'brakes' so hard to control.
I do not see any compass related issue.

cheers
JJB
analysis1.png
2021-2-2
Use props
bnenadic
lvl.2
Flight distance : 344154 ft
Croatia
Offline

Don't know still confused with full speed to left! Now I see how happy I was for not being injured , not problem for me but 2 small children with me.
Thinking, lack of sensors made this drone quite dangerous weapon!
2021-2-2
Use props
JJB*
Core User of DJI
Flight distance : 12225059 ft
  • >>>
Netherlands
Offline

bnenadic Posted at 2-2 07:25
Don't know still confused with full speed to left! Now I see how happy I was for not being injured , not problem for me but 2 small children with me.
Thinking, lack of sensors made this drone quite dangerous weapon!

No,  not using a drone as it should be used can make a small drone to a 'weapon'.
ATTI mode is controllable if you have the experience and enough free space for the drone.
Not flying close to a building starting from a balcony.
Ofcourse in your flight no HP was set, so what if your drone did loose connection ??

Always wait for a GPS lock, in ATTI mode full stick forward/aft or left/right will increase speed to its maximum!  and releasing sticks (all to zero) does not stop the drone!

cheers
JJB
2021-2-2
Use props
bnenadic
lvl.2
Flight distance : 344154 ft
Croatia
Offline

Yes, I apsolutely agree. And I'm giving you link for 40 km od fly log. In every of flight made with the drone there was lost of gps and drone never done such a suddenly fast non controled fully accelerated movement.

https://drive.google.com/folderview?id=1CHp7HawvI7rCUJdmztTPBZ7iIstVxe29

Hope tomorrow will upload video from surveillance cameras on the building !
Hope you change your mind about lack of sensors on mini 2
Thank you for your time and professional opinion, and glad that the drone was only thing damaged in scenario.
DO NOT FLY NEAR BUILDINGS!!!
2021-2-2
Use props
JohnLietzke
Second Officer
Flight distance : 3125968 ft
United States
Offline

bnenadic,

Sorry to hear about your crash.  You were luck to get one of the gurus to review you logs.  JJB, is a wealth of knowledge and incredible at interpreting logs.  

What JJB is saying about the lack of satellite locks and no HomePoint set makes sense that ATTI mode was engaged.  For normal flight a GPS lock is an essential part of navigation and automated flight which can include how the drone handles wind and control inputs.  

Taking off before having a good GPS lock is a common error that most new pilots make.  This includes myself when I first started out.  
2021-2-2
Use props
JJB*
Core User of DJI
Flight distance : 12225059 ft
  • >>>
Netherlands
Offline

bnenadic Posted at 2-2 09:51
Yes, I apsolutely agree. And I'm giving you link for 40 km od fly log. In every of flight made with the drone there was lost of gps and drone never done such a suddenly fast non controled fully accelerated movement.

https://drive.google.com/folderview?id=1CHp7HawvI7rCUJdmztTPBZ7iIstVxe29

Hi,

Had a look at your flights, well i 'randomly' picked one flight (DJIFlightRecord_2021-01-06_[11-55-16].txt) ; wich was the largest file.

Take off in the park i guess, with no GPS lock at start, OPTI and ATTI flight, after 18secs in flight HP set.
See the orange marker, above trees.  No a disconnect RTH could end you being not that happy.

Happy many landings,
cheers
JJB
analysis1.png
analysis2.png
2021-2-3
Use props
Labroides
Core User of DJI
Flight distance : 9991457 ft
  • >>>
Australia
Offline

bnenadic Posted at 2-2 02:40
Compass calibration made just before flight, 1.5 min before crash. Made away from metal objects, and massage calibration successful

Actually I hope the crash  is my fault.
It had nothing at all to do with you updating anything.
The incident you described is a classic yaw error, caused by launching from somewhere close to steel that's deflected the compass which the gyro sensors use to initialise.

Compass calibration made just before flight, 1.5 min before crash. Made away from metal objects, and massage calibration successful

You launched from the balcony?
What's that made of?
How much steel is in it?

Don't launch from reinforced concrete surfaces

btw .. calibrating your compass won't prevent yaw errors.
2021-2-3
Use props
bnenadic
lvl.2
Flight distance : 344154 ft
Croatia
Offline

Labroides Posted at 2-3 03:38
Actually I hope the crash  is my fault.
It had nothing at all to do with you updating anything.
The incident you described is a classic yaw error, caused by launching from somewhere close to steel that's deflected the compass which the gyro sensors use to initialise.

That's ok, I agree it was stupid thing to do. Thought if it was ok because first 20 times flights from same balcony was with no problems.
But these flight scared me a lot.
I'm ok with slow movements ( let say it's fine with me to move 3-4 meters in every possible direction) of drone in hovering when losing GPS signal and lower sensor.
But what the hell was hovering  and FULL speed to the left , no wind , clearly sunlight visibility, only reason to do such thing is no gps and lower sensor not working on 12-15 meter hight.
Thinking to buy helmets for my children for future flights in no urban , metal free area
2021-2-3
Use props
12Next >
Advanced
You need to log in before you can reply Login | Register now

Credit Rules