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error 27

Discussion in 'Phantom 2 Vision Discussion' started by keiji11, Nov 19, 2014.

  1. keiji11

    Oct 21, 2014
    Likes Received:
    hi there

    I have error 27 (GPS not calibrated, or magnetic field interference. Please calibrate GPS again in good condition) when I plug my phantom to assistant software. I try the advance calibration and went out and do the calibration dance but when I plug in to my pc, it still shows error 27
    Is this error a big issue? how can I fix it?

  2. N017RW

    May 2, 2014
    Likes Received:
    Palm Beach Co.- FL
    There is no GPS calibration or adjustments available to the users. It's not an IMU issue either which is why you have not had success.
    This only leaves the magnetometer.

    Have you looked at the compass raw mod value in the P2 Assistant?
    It should be between 1400-1800.

    You may/likely need to degauss the compass if it not within that range.

    You can search YouTube for videos on how to do this.
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