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Altitude has stopped reporting in DJI App
555 8 1-2 11:21
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Baykayaker
lvl.3
Flight distance : 449016 ft
United States
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Since my Spark returned from repair, altitude is no longer being displayed continuously in the DJI app.  The drone knows when max altitude has been achieved and sends a verbal warning.  But the display bounces around 25 ft or so.  Occasionally I can see what appears to be an altitude flash on the screen, but then it goes back to displaying 25 ft.

Does anyone know how to correct this?
1-2 11:21
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DJI Thor
Administrator
Flight distance : 13602 ft
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Hi Baykayaker, please try to calibrate the IMU, make sure that the firmware and DJI GO 4 app have been updated to the latest firmware and try to fly in a place with a decent GPS signal. Please keep us updated if the issue persists. A screen recording video of the issue would be much appreciated.
1-3 02:44
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S-e-ven
Captain
Flight distance : 5759259 ft
Thailand
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Do you have again plastic foil on the bottom sensors, perhaps?
1-3 05:04
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Nidge
First Officer

United Kingdom
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If the readings are coming from the internal barometer it’s possible whoever put it back together failed to ensure that the barometer still had its foam cover in place.

Nidge.
1-8 12:08
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Baykayaker
lvl.3
Flight distance : 449016 ft
United States
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Nidge Posted at 1-8 12:08
If the readings are coming from the internal barometer it’s possible whoever put it back together failed to ensure that the barometer still had its foam cover in place.

Nidge.

Thanks for the reply Nidge.  I guess I'll just let it be for now, as I don't want to take the drone apart to check.
1-22 15:47
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Baykayaker
lvl.3
Flight distance : 449016 ft
United States
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DJI Thor Posted at 1-3 02:44
Hi Baykayaker, please try to calibrate the IMU, make sure that the firmware and DJI GO 4 app have been updated to the latest firmware and try to fly in a place with a decent GPS signal. Please keep us updated if the issue persists. A screen recording video of the issue would be much appreciated.

I noticed today that the altitude is being recorded in the flight information, as it appears correctly in the playback.  Just not being displayed in the DJI GO 4 app.

Will see if I can find out hot to calibrate the IMU, although since the altitude is being saved in the flight info, I doubt this is the cause.

Next time out will record the screen during flight.  Rain in the forecast, so may be a few days.

Thanks for all of your help.

1-22 16:07
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DJI Thor
Administrator
Flight distance : 13602 ft
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Baykayaker Posted at 1-22 16:07
I noticed today that the altitude is being recorded in the flight information, as it appears correctly in the playback.  Just not being displayed in the DJI GO 4 app.

Will see if I can find out hot to calibrate the IMU, although since the altitude is being saved in the flight info, I doubt this is the cause.

Thank you for getting back. Please keep us updated after testing. Thanks.
1-22 20:56
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Baykayaker
lvl.3
Flight distance : 449016 ft
United States
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DJI Thor Posted at 1-22 20:56
Thank you for getting back. Please keep us updated after testing. Thanks.

Rain fell last night, but today was flyable.  The link below shows two captures; one during the flight (I cut it short at 1:10), the other shows the video from the flight log.  I've added some narration to explain.  After takeoff, the altimeter reports changes to 28 feet, then appears to limit.  In the second segment the altitude reading shows the drone rose to 229 feet.  Not shown is my observation that upon landing, the altimeter reading in DJI 4 GO again becomes active below 28 ft and returns to zero when at the home point.

https://youtu.be/Iojp5zg62tM

1-23 13:49
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Baykayaker
lvl.3
Flight distance : 449016 ft
United States
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Altimeter error

Best I could do
2-5 14:42
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