Mavik Pro slams to ground after firmware update

Discussion in 'Mavic Pro Discussions' started by DiversifiedOne, Apr 16, 2018.

  1. DiversifiedOne

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    2 weeks ago I returned from Ireland where I was able to capture some footage but high winds or no-fly zones kept me from doing much besides vacation and sightsee. When returning, I kept getting firmware update notices, so I went ahead and once it was complete tried flying again. This time upon takeoff, it tried escalating straight up even when I was not directing it. Thinking something was wrong, I tried to land it. It came down to about 3 or 4 feet and did not want to land. I kept the controller held down, and it proceeded to slam itself into the ground and bounce up, kept it held down until it finally stayed on ground and stopped.
    Anyone experience the same or know what could cause this?
     
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  2. mega

    mega Member

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    I had the same problem recently but I have mailed mine in to look over some problems too...anyone else?!
     
  3. kakao

    kakao Well-Known Member

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    Did you actually shut off the motors by doing so ..?
     
  4. DiversifiedOne

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    not sure I follow your questions kakao
     
  5. Youser

    Youser Well-Known Member

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    Looks like it landed and then the motors turned off, like they would with a manual landing.
     
  6. joejaxvic123

    joejaxvic123 Well-Known Member

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    Yet another firmware update success story...
     
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  7. kakao

    kakao Well-Known Member

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    I thought that you may have accidentally pushed the sticks down, as that may cause the motors to shut off.
     
  8. BJR981S

    BJR981S Well-Known Member

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    Holding sticks down will not cause a motor shutdown. Its stick down and no motion on the vario that is required.
     
  9. ac0j

    ac0j Well-Known Member

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    Looks like you need a little more study. Holding both sticks down and in or out WILL shut down the motors. Even if it is 400' up.

    We need the flight log @msinger or @sar will get to the bottom of this latest "firmware" issue.
     
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  10. BJR981S

    BJR981S Well-Known Member

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    You need to read. The post I responded to said "Down". Not sticks down and in / out.

    Where did I say Down and In / or Out?

    Having flown since P2 and owning more than a dozen DJI Drones I think I know what I am talking about. And I don't react to posts and misread them.

    My original drone the P2 would in fact not CSC in mid flight. I haven't tried it on my Sparks or Mavics or P3 and P4. As that would be extreme stupid.

    The motor off in a normal landing requires a Vaio no change. As I stated in my post.

    Cheers.
     
  11. sar104

    sar104 Well-Known Member

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    Agreed on the stick down motor stop requirement, but the P2 will shutdown mid-flight if you give it the standard 2-stick CSC.
     
  12. Smecky

    Smecky Well-Known Member

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    Best answer. Don’t update.
     
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  13. ac0j

    ac0j Well-Known Member

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    Lets see if the update was the problem, I bet NO. Because it almost NEVER is.
    OP needs to post the flight records so we can find out.
     
  14. BJR981S

    BJR981S Well-Known Member

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    The Phantom 2 Vision Plus When shipped by DJI will not shutdown in flight using the CSC. You can also enable Naza Flight mode and it will still not shut down in flight with the CSC command. As long as you use the Phantom 2 assist Program.

    The P2 assist program does not require a save commend as it writes as soon as the value changes.

    Some people however downloaded the NAZA V2 assistant program to see what else they could do with their P2s. The NAza v2 Assistant has the setting available to do in immediate shutdowns and is the default setting.

    All anyone had to do was to connect the P2 to the Naza V2 assistant and that was it. a CSC shutdown in midair will happen.

    But that is not the default or possible using the correct tools for the P2.

    The 2 Shutdown methodologies are available in the fight controllers. It is a Configuration setting. CSC Intelligent or Immediate.

    Intelligent will not shut down in flight, immediate will.

    Default setting of Phantom 2 Vision Plus is Intelligent and cant be changed without using the Naza V2 Assistant program.

    Here is an extract of the modes. From the Naza M V2 manual.

    csc.png
     
  15. HDBOB

    HDBOB Member

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    Did you do your update with DJIGO4 or DJI Assistant 2? DJI Assistant 2 seems to work much better for updates!!!
     
  16. sar104

    sar104 Well-Known Member

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    From page 23 of the Phantom 2 user manual v1.1:

    screenshot68.png

    I never tried it in mid-air with either of my P2s, of course. But perhaps the P2V+ was different, but you only referred to the P2 in your post.
     
  17. Mr. RTH

    Mr. RTH Active Member

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    I don't know if my case is similar to yours but... Recently I am getting an "ultrasonic sensor error", but in the first time I didn't even noticed what was that about, so I proceeded to land normally, pulling left stick all the way down, and mavic just slammed pretty hard int the ground and got up a few feet again. Then I realized it was not "seeing" the ground level anymore, so I had to slowly take it down, and even then it fought a little to stop motors after landing, just like when you hand catch it.
     
  18. amstar

    amstar Active Member

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    Most likely in this case, the downward vision sensors were off. The AC will then slam to the ground instead of a gentle calibrated landing
     
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  19. Simmo

    Simmo Well-Known Member

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    Not on a MP unless you change the setting in the app.
    csc.jpg
    cscapp.jpg
     
  20. ac0j

    ac0j Well-Known Member

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