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Phantom 2 V+ fly problem after crash and repair

Discussion in 'Phantom 2 Vision + Discussion' started by Lifejoy1, Feb 15, 2015.

  1. Lifejoy1

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    Good day.

    I am new on this forum.

    I crashed my P2 V+ (V1) at the end of last year.

    I am now rebuilding my phantom in several steps.
    I have come very far but the last step is keeping me awake at nights.
    It would be fantastic if one of you veterans can give me a golden hint.

    Let me give you as short as possible the steps I took.

    Phantom crashed against building with one of the four rotors.
    It pulled back instead of levelling. No balance.

    Shell was dented, so one motor was not straight up anymore.
    So I took of the props.


    After the shock I started my Phantom carefully.
    At first there was a compass error and some problems with the led's
    But after the first attempt:
    - Full red led error.


    After opening up I observed the following:

    - motherboard was missing the compass connector and the tiny DJI battery cable that makes sure you use the DJI brand. They broke of by the crash
    - some led's broke of from one controller
    - one cable was torn in two

    I bought the following parts:
    - new motherboard
    - new cable
    - new controller (V1 version)
    - new shell

    After a very careful "operation" with all the new parts and with good soldering I connected the P2 to the PC assistant. No errors!!! I was very glad.
    I did a advanced calibration just to make sure.
    I also calibrated the transmitter first with rc assistent and later with assistent 2 in basic tab. All OK.

    On a wide field outside I did a GPS calibration.
    All led's fine and I did a test without the props.

    Everything worked!!! including gimble, cam and FPV. YES!!


    I did the first test without props.
    All looked great.


    Time for the real first fly test.
    Before ascending the P2 pulled to the backside in a second (the side of the crash)

    very strange squeeky sound when props came to a stop.

    Than I thought that there was still something wrong with one of the motors. (One of the motors were it hit the building had a small dent).

    - So new motor soldered on.

    But no difference at all.
    Still pulling to the side of the crash (to the backside)


    - 4 new props out of the plastic, no difference

    I do not know what to do anymore.
    Can someone please give my some new ideas?

    Thank you very much.
    I would really love to fly my P2 V+ again.

    Best regards.
     
  2. Mako79

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    Re: Phantom fly problem after crash and repair

    Plug USB into the transmitter and recalibrate the Transmitter in the RC12 PC software.
    And then in the plug into Phantom and calibrate the under basic > RC in the PC Phantom assist software.
     
  3. Lifejoy1

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    Re: Phantom fly problem after crash and repair

    I have done that allready. Sorry I forgot to mention that. But thank you for your input.
     
  4. Lifejoy1

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    Re: Phantom fly problem after crash and repair

    When I have it in my hand and let the props spin. I feel it pull to the backside. It is not ascending straight up.
     
  5. Mako79

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    Re: Phantom fly problem after crash and repair

    You have a new MC board yes?
    If so, how did you mount the NAZA? Is it perfectly levelled on the MC board?
     
  6. Lifejoy1

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    Re: Phantom fly problem after crash and repair

    Yes new board and I had to put the NAZA up again. But I used the same tape and at first observation it seems levelled perfectly. But I will open up and check again. Thanks.

    Can the compass (on the landing platform) be faulty? Without the PC assistent or the Phantom noticing?
     
  7. Lifejoy1

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    Re: Phantom fly problem after crash and repair

    Thank you Mako79 for your idea about the NAZA. Here are three photo's I do think it is levelled ok.
     

    Attached Files:

  8. Lifejoy1

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    Re: Phantom fly problem after crash and repair

    It is not the NAZA levelling. So what CAN be the problem? Please does anyone has another tip for me? Thank you very much.
     
  9. CityZen

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    It could still be an issue with an ESC. If you want to diagnose, then move some parts around and see if the problem moves around.
    Yes, it's a bit of a hassle, since they're soldered, but the alternative is just blindly replacing parts until things work better.

    You might also try doing the IMU calibration yet again, just in case.
     
  10. jeff0r3

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    Just curious, you said you replaced your controller with a V1. In the pictures I see your controllers appear to be V2? That would definitely cause you some problems if that is the case?
     
  11. Lifejoy1

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    Hello there. Thanks for all the input.

    Solution found, I think!!!

    I soldered the CCW motor wires RED BLACK and YELLOW like the CW motor beside this one to the controller.

    So it turned the wrong way.

    Going to change the soldering in the weekend. Hope this helps.