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  1. Monkydogg3

    Jul 1, 2016
    Likes Received:

    1. Monkydogg3
      So I clipped a branch and went down from only about 20 feet the aircraft is still intact. No physical damage that I can see. When I found the drone it was upside down in about 7 inches of water and it had been sittin there for approximately 15mins. All the lights were still flashing and the camera wasmoving around on its own. I yanked the battery for fear it would ruin it more or jack up the IMU. Let it all dry out and did all the recalibrations that I can and it says "navigation system error" "check redundancy state" what does that mean and how do I fix it??
  2. N017RW

    May 2, 2014
    Likes Received:
    Palm Beach Co.- FL
    The P4 has dual navigation sensors such as the IMU.
    This sensors sense the aircraft's orientation and motion.

    It appears one or more of them are not functioning properly so you are getting this error.

    As water and electronics don't mix it would appear you have some damage as a result.

    It is possible that further drying may correct the issue but it would seem unlikely.
    Your only recourse would be sending it off to be repaired.
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