Problem with max height (max 120 m)

L emman

Following on from my message (4 days ago) I would like to thank you very much for your advice. You were right.
I downloaded and installed the 4.9.0 (282) Kernel 4.9.0 version.

In the 1st attempt, however, a problem arose with the flight height. I had set 150 meters (450 feet), but the drone's climb stopped at 120 meters. Checking the settings in the software I saw that a maximum height of 120 meters is set with no option to change. If I add height, the app sends "INVALID_PARAM" message.
Is there any solution?
I fly the DJI Mini 3 Pro. In the DJI Fly app I have a limit of 300 meters. The area I wanted to fly has a limit of 150 meters.

Thank you very much for your time

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Comments

27 comments

  • Comment author
    Karl

    What a coincidence. I opened a post about exactly the same problem at the same time ;-)

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  • Comment author
    Mike (Arizona Wyldwest) Dronelink Expert Dronelink Expert

    Does DL work if you set it in the DJI Fly app first ? All settings stick across apps so curious if it will work.

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  • Comment author
    L emman

    Unfortunately, no
    I opened DJI FLY, set altitude to 150 meters, closed it.
    DL did not accept this amount.
    Reopening the DJI FLY the maximum height was 120 meters again. It seems that exiting the application does not save the specified height.
    The issue is that while in DL it has a button to increase the maximum height, it doesn't have one to register it (besides it gives an error).

    Thanks for your interest

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  • Comment author
    Martin Reading Dronelink Expert Dronelink Expert

    if this is in europe, isn't that the max height that is allowed and now controlled by the firmware

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  • Comment author
    Jim McAndrew Dronelink Staff

    What you set it to 150m in DJI Fly does it actually take the setting and can you manually fly the drone to 150m? If you close DJI Fly and re-open (without opening DL) does the setting stick?

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  • Comment author
    Mike (Arizona Wyldwest) Dronelink Expert Dronelink Expert
    • Edited

    Martin is correct. EU limits to 120m so if it is then that’s the issues. If it’s reverting back to 120 in the DJI Fly app then that’s more then likely why. 

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  • Comment author
    Karl
    • Edited

    Hi there,

    since @Jim Andrew advised to use this thread I'll commit my information here.

    @martin & @mike this is only partially correct.

    Here is a copy & paste from my other thread:
    -----
    Since 01.01.2024 a classification is mandatory for all drones in the EU. For drones under 250g it is class C0.

    This means that there is a maximum height of 120m above the take-off point.

    However, the DJI Mini 3 Pro is "classified" as a stock drone as it has no classification (sold before 01.01.2024) and there is a limit of 120m above ground(! - not take-off point).
    ------
    The Mini 4 pro is C0 classified if bought after 01.01.2024 there is nothing you can do about it.

    The new firmware for the M4P introduces the 120m restriction and DJI offers customers with a M4P which bought their drone before 01.01.2024 to remove the C0 classification and unlock the max height again to 500m in the firmware.

    But as said, this is for the M4P.

    The issue here is with the M3P which has a limit of 500m and not 120m.

    Hope this clarifies the problem a little bit.

    Best regards.

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  • Comment author
    L emman

    I'll try to try it tomorrow if it doesn't rain.
    However, since he gives you the right to set a maximum height above 120 m. he will also be able to fly to it.
    DL, while it allows you to change the maximum height, does not accept it and does not save it.

    Yours sincerely
    Lazaros Emmanouilidis

    Also, I agree with Carl

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  • Comment author
    Jim McAndrew Dronelink Staff

    However, since he gives you the right to set a maximum height above 120 m. he will also be able to fly to it.

    That needs to be tested.

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  • Comment author
    Mike (Arizona Wyldwest) Dronelink Expert Dronelink Expert

    Ok. The info I saw in the DJI forum which I believe applied to both. I’d contact DJI and ask them since DL doesn’t have anything to do with the firmware. Always best to go direct to the source which in this case is DJI. If you set it in the DJI Fly app and it doesn’t stay at that value when you open it back up then it cannot be set in the drones firmware. To me it sounds like a DJI firmware issues. Good luck.

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  • Comment author
    Karl

    However, since he gives you the right to set a maximum height above 120 m. he will also be able to fly to it.

    That needs to be tested.

    What do you exactly mean?

    I can confirm:

    • Setting the maximum altitude above 120m in the DJI app works without any problem. The value is beeing saved
    • with the DJI app it is possible to fly >120m above the take-off point
    • The DL-App lets me set an altitude >120m, however it's not being saved. Instead it gives me INVALID_PARAM

    Best regards

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  • Comment author
    Jim McAndrew Dronelink Staff

    I think it might have been a translation issue. I thought you had not actually flown above 120m after setting the value. If it doesn't stick when you switch to DL, then this is a DJI issue as all firmware / camera settings have always carried over between apps in the past.

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  • Comment author
    Karl

     I thought you had not actually flown above 120m after setting the value.

    With the DJI fly-app yes. Dronelink neither lets me save the value above 120m nor fly above 120m ;-)

    [...] as all firmware / camera settings have always carried over between apps in the past.

    If I understand you correctly, the first step is to ensure that an altitude above 120m in the DJI app keeps being saved even if closing and restaring the DJI app. Is that right?

     

     

     

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  • Comment author
    L emman

    Since DL allows me to increase the max height above 120m why doesn't it save it already?
    Asking DJI to fix something to make the DL work I don't know what the chances are of that coming true....

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  • Comment author
    Mike (Arizona Wyldwest) Dronelink Expert Dronelink Expert

    Here is a link to the DJI forum which talks about the 120m limit. It is a bit confusing but seems to me they will be including all Mini’s at some point with a firmware update for drones used in the EU. Bottom line as Jim and I stated, if it won’t stick/ stay set at anything more than 120m in the DJI Fly app then there’s nothing DL can do. Easiest way to test is by setting to above 120m in DJI Fly app then power down everything and power back up. Open the DJI Fly app and see what the value is. If it’s back to 120m then you have your answer. Simple enough.

    https://forum.dji.com/thread-303029-1-1.html#:~:text=Sadly%20not%2C%20DJI%20will%20be,to%20add%20the%20120m%20limit.&text=There%20are%20a%20few%20sources,DJI%20chat%20thats%20going%20around.

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  • Comment author
    stéphane GARNIER

    Even european pilots have difficulties to understand the rules to be applied (classes, categories, areas, timeline, ....).
    Not a surprise if Dji faces some problems to implement those requirements.

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  • Comment author
    L emman

    Sorry, let me see if I understood correctly.
    DJI has its own application, in which I can and do exceed 120 meters.
    DL has its own app, but while it has the button to increase max height, it doesn't allow me to save it and fly over it.
    So what do I do?
    Do I ask DJI to fix theirs or DL to add the save to their software?
    The software is from DL, whose program we have paid for, because it could take advantage of the capabilities of our drone (DJI Mini 3 Pro).
    If today you are telling us that this is not possible and we should have limited capabilities, maybe we should find another solution.

    Yours sincerely

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  • Comment author
    Jim McAndrew Dronelink Staff

    Dronelink uses the DJI SDK, and if the DJI SDK is not allowing Dronelink to set a value higher than 120m on the drone, then there is nothing we can do to get around it. You should contact DJI and tell them to add support for it in the SDK. If this is truly the case, all 3rd party apps will have the same issue as they are all built with the DJI SDK.

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  • Comment author
    L emman

    That is, DJI has kept the storage of height increase only for its own product and not for 3rd manufacturers.
    Because inside the DL you can increase the height but it does NOT save it.
    Not your app?
    Can you not add, as long as one uses it, it has an increased height?
    Also, I feel that in order to continue to attract customers you should ask DJI to make the necessary modifications, not your customers.

    Yours sincerely

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  • Comment author
    Mike (Arizona Wyldwest) Dronelink Expert Dronelink Expert

    I don’t speak for Jim but I know they are always communicating directly with DJI as DL is a developer. There are a lot of threads on the DJI forum regarding this issue with many upset pilots so it’s a mess. Sounds to me like they have already implemented the 120m limits in their SDK (software) for third party apps. It’s not a simple fix by DL to just make it savable as you said. That’s not how it works.

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  • Comment author
    L emman

    I would like to let you know that when testing 3rd party software, without setting anything in DJI I set a maximum flight height of 250m (this height was accepted before) and flew up to 150m due to my area limitation.
    I then tried DJI, on which I set a maximum height of 500m, but went up to 150m (for the above reason).

    Yours sincerely

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  • Comment author
    Mike (Arizona Wyldwest) Dronelink Expert Dronelink Expert
    • Edited

    I think you’re missing the entire point. DL doesn’t limit this. It’s the DJI SDK which is used so if it worked before and not now then something changed in DJI’s software to limit it now. There have been about 4 or 5 DJI SDK versions since I believe April 2023 when they released it to fix all the problems and any of those may have changed it. Since this thread is getting really long in the tooth I’m moving on. Continuing to blame DL won’t fix it. Contact DJI. Good luck. 🏃🏃🏃

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  • Comment author
    Gilles SEGURA

    Same here
    after updating everything: SDK, DF, DL..
    I can exceed 120 m altitude with DF (but with a warning window which recalls European rules) but impossible with DL with the error 'INVALID_PARAM'

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  • Comment author
    Mike (Arizona Wyldwest) Dronelink Expert Dronelink Expert
    • Edited

    Hi Gilles SEGURA. Yes, but as already stated DL and all third party apps use them same DJI SDK which is what DL must uses as Jim stated above. It’s a DJI SDK issue, not DL so nothing they can do. If it’s that important to fly at higher altitude for your purposes then ask DJI to add the support for it. Enjoy.

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  • Comment author
    Karl

    Hello everyone,

    I understand the basic problem and also that there *cannot* be a solution from DL because it is simply out of their hands.

    But I wonder: What about other DJI drones (>249g) that rely on the "new" SDK? By law, these are allowed to fly higher than 120m above the take-off point (class >= C1).

    Or to put it another way: Can I fly a "current" DJI drone with C1 classification that relies on the "new" SDK higher than 120m above the take-off point with Dronelink or is it only possible with DJI-Fly?

    Thanks in advance.

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  • Comment author
    Mike (Arizona Wyldwest) Dronelink Expert Dronelink Expert

    There are no newer drones >250 grams which have the DJI SDK. If they even do build the SDK for a newer drone in that category like the Air 3 it would still come back to whether the DJI SDK will allows it.

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  • Comment author
    Mats Hägglund

    Here's the deal: as we speak the EU EASA C0 class rules is only applied in fw restriction on Mini 4 Pro. No other DJI sub 250g has got that restriction since they're not C0 classified. Ok? TGIF all!

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