Phantom 4 CRASH PLEASE HELP!!!
- Thread starter pete923
- Start date
captainmilehigh
Premium Pilot
Yeah, it may be wise to preview the DAT files before DJI does. Good point. [emoji106]
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Hindsight is 20/20 and obviously the thing to do was to stop after the first warning. Having said that, if anyone of us got "lucky" and took off only from the second take off point and encountered a TFR NFZ under the same RTH scenario we may not have faired any better. Especially if you'd flow that same flight before a few times.
Hopefully DJI sort this out, but that first warning could penalize the OP.
Hopefully DJI sort this out, but that first warning could penalize the OP.
Could this be the "infamous" software problem where DJI forces the craft to land wherever it is because of the no fly zone you were obviously in. (If King Obama was in town, there would have definitely been a temporary NFZ issued.) The GO app warned you but turning it off and back on somehow fooled it temporarily.
There was a long post about this a while back. (link below) DJI takes complete control of the drone and forces it to land "NO MATTER WHERE IT IS", taking complete control away from the pilot.
DJI Mandatory, uninterruptible actions are wrong, legally actionable
I admit this is my one very large beef with DJI. No ability to disable the drone from being big brother when it comes to where I'm flying.
captainmilehigh
Premium Pilot
Yep. If I get that warning I'll shut down and check for TFR's or NOTAM's in the area. When in doubt I'll just pack up and find another site.......or go home and do yard work or the 'honey-do list'. Yuk. [emoji30]
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I don't mind and actually want it to tell me I flew into a NFZ but I'd like to try to fly it out or land it myself. I'd hate to pan down and just watch it crash into a tree or land on a road per the link great_lakes posted.
I learn from these types of threads so I guess I will also be doing yardwork if I ever encounter that warning
captainmilehigh
Premium Pilot
I learn from these types of threads so I guess I will also be doing yardwork if I ever encounter that warning
Yep, me too. Live to fly another day.
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go to dji site and support are and submit a case.
why would you not have done this already as soon as you crashed?
what harm is there to send them the log file and see what they say.
THEN you can worry about the what ifs.....
good luck!
I see a lot of confusion about the NFZ and how it works with DJI devices.
1.
all NFZ are listed here:
DJI GEO System - Unlock Areas For Authorized Access
you need to have an account and log in
2.
here are the NFZ of your area. You were NOT in a NFZ. No doubt about it.
3.
there is a file with the coordinates of the NFZ loaded into the drone, which get read by the software you use to command the drone.
In your case DJI Go I assume -could have been Litchi, Altizure and many others, they all must read this file-.
By getting the GPS location it knows if you are in one of these zones.
It is NOT a dynamic process, DJI cannot add on the fly a temporary NFZ to your Drone.
In order to add or delete one you need to replace the file loaded into the drone.
It is not done automatically. You have to update it.
4.
you can unlock the Authorization Zone (yellow) by yourself from the web site above, by giving some details. It works 24 hours at a time.
Red Zones can be unlocked by DJI if there is a valid reasons -I did it for a survey at an airport-.
You obviously need to provide quite a bit of paperwork.
5.
If you enter a NFZ the bird just will land and there is nothing you can do about it.
6.
In you case it is crystal clear that the device detected a wrong location by giving you a NFZ which does not exist.
In reality it had two problems, because it saw you were in a NFZ on the first time and then let you take off, which should NOT happen.
Everything points to a GPS intermittent malfunction, which made it inconsistently see the drone in a wrong position with a NFZ.
7.
Do not hesitate to contact DJI, who has a consistent policy of replacing drones damaged due to technical problem.
You have more than what needed to prove your case.
Hope the above could help you
rgds
Bernie
1.
all NFZ are listed here:
DJI GEO System - Unlock Areas For Authorized Access
you need to have an account and log in
2.
here are the NFZ of your area. You were NOT in a NFZ. No doubt about it.
3.
there is a file with the coordinates of the NFZ loaded into the drone, which get read by the software you use to command the drone.
In your case DJI Go I assume -could have been Litchi, Altizure and many others, they all must read this file-.
By getting the GPS location it knows if you are in one of these zones.
It is NOT a dynamic process, DJI cannot add on the fly a temporary NFZ to your Drone.
In order to add or delete one you need to replace the file loaded into the drone.
It is not done automatically. You have to update it.
4.
you can unlock the Authorization Zone (yellow) by yourself from the web site above, by giving some details. It works 24 hours at a time.
Red Zones can be unlocked by DJI if there is a valid reasons -I did it for a survey at an airport-.
You obviously need to provide quite a bit of paperwork.
5.
If you enter a NFZ the bird just will land and there is nothing you can do about it.
6.
In you case it is crystal clear that the device detected a wrong location by giving you a NFZ which does not exist.
In reality it had two problems, because it saw you were in a NFZ on the first time and then let you take off, which should NOT happen.
Everything points to a GPS intermittent malfunction, which made it inconsistently see the drone in a wrong position with a NFZ.
7.
Do not hesitate to contact DJI, who has a consistent policy of replacing drones damaged due to technical problem.
You have more than what needed to prove your case.
Hope the above could help you
rgds
Bernie
I found this site. Do I send them an email? What is the best way to do this? Do I send them the flight log? If so how do I do that? Do I use the same link I sent in the forum? Should I send an email here-
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I am planning to contact DJI as soon as I gather all the knowledge there is about NFZs which will give me the best chance to prove my case. Thank you for the informative post.
Yeah, it may be wise to preview the DAT files before DJI does. Good point.
How do I preview the DAT file and send it to this forum? Thanks.
How will they be able to see the first warning? Can I send them logs from ONLY the problematic flight so they can't see it?
What should I send as my proof of purchase? Should I send pictures of the damage? Should I send the DJI GO log, the DAT log, or both? If so, in what form should I send these? What exactly should I write? Should I say "I believe your drone malfunctioned" or "what happened here?" How long should o expect them to take to respond? Just trying to give myself the bet chance of winning this case. This is the form I'm looking at
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Yes, look at 'Hover' app in the App Store, it shows no fly zones via circles on a map relative to your triangulated GPS coordinates.
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Do you know that for a fact? Not arguing, it's something I am unsure of because it would not be hard for them to do so.
They will ask you to sync your flight logs from the go app or upload the files from the bird. Either will have the last few flights on them.
I pondered the same question. How does the drone know of 'dynamic' NFZs? T do this, the drone must be constantly connected to the internet and update its internal 'maps' dynamically. This of course is neither practical nor realistic. How about this: The 'dynamic' NFZs could be 'emitting/broadcasting' radio waves over the specific NFZ that make it easy for aircrafts to detect it.
You can tell, I honestly do not know (yet) how NFZs work or even how they are enforced ... anyone can shed a light on this mystery?
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