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IMU calibration
657 19 2018-4-17
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djilover10
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Flight distance : 9331 ft
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I have something to ask. I am thinking it would be good to calibrate the imu every month. Is this bad for the imu to be getting constant calibrations. I mean, when you calibrate something you are changing it's parameters to make it work right.
2018-4-17
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Jenee 2
Captain
Flight distance : 7811854 ft
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No it is not a good idea. You only need to calibrate the IMU if there is a valid reason to do so.
2018-4-17
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DJI Thor
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Flight distance : 13602 ft
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Hi there, you can calibrate the IMU when the app asks you to do so or when the drone is flying unstable, the parameters are not correct etc.
2018-4-17
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F.KOK
First Officer
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Namibia
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DJI Thor Posted at 2018-4-17 20:28
Hi there, you can calibrate the IMU when the app asks you to do so or when the drone is flying unstable, the parameters are not correct etc.

Hello Thor, when I start up my P4 everytime there is a IMU redundancy switch warning. The ACC2 shows on. When I restart the Drone the warning does not appear and the ACC1 is on. If I fly when ACC2 is on the Drone is unstable but after restart when ACC1 is on the Drone flies stable. Everything is on the latest version and up to date. I also have done a IMU  calibration more than ones but is stays the same. Can you give some feedback on this please. Thanks.  
2018-4-17
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DJI Thor
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F.KOK Posted at 2018-4-17 22:29
Hello Thor, when I start up my P4 everytime there is a IMU redundancy switch warning. The ACC2 shows on. When I restart the Drone the warning does not appear and the ACC1 is on. If I fly when ACC2 is on the Drone is unstable but after restart when ACC1 is on the Drone flies stable. Everything is on the latest version and up to date. I also have done a IMU  calibration more than ones but is stays the same. Can you give some feedback on this please. Thanks.

So the IMU redundancy warning exists in every startup, right? Did the drone crash before? Is it possible that you make a video of this case which shows the startup of the drone, restarting it and the firmware info? I would like to have a check first. Thank you.
2018-4-18
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F.KOK
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DJI Thor Posted at 2018-4-18 05:13
So the IMU redundancy warning exists in every startup, right? Did the drone crash before? Is it possible that you make a video of this case which shows the startup of the drone, restarting it and the firmware info? I would like to have a check first. Thank you.

Thanks for your reply. Yes in every startup. The Drone never crash before. Ok I will do what you asked.
2018-4-18
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DJI Thor
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F.KOK Posted at 2018-4-18 06:06
Thanks for your reply. Yes in every startup. The Drone never crash before. Ok I will do what you asked.

Thank you very much, I'm waiting for your update.
2018-4-18
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F.KOK
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DJI Thor Posted at 2018-4-18 19:19
Thank you very much, I'm waiting for your update.

Hello Thor, here is the video.

2018-4-19
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DJI Thor
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F.KOK Posted at 2018-4-19 09:14
Hello Thor, here is the video.

https://www.youtube.com/watch?v=-fs5taWnTpA&t=11s

Thank you for your info, though I didn't see the redundancy system switch warning, I will forward to the engineers this case to check. Will come back to you once I hear from them.
2018-4-19
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F.KOK
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Flight distance : 12112621 ft
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DJI Thor Posted at 2018-4-19 21:12
Thank you for your info, though I didn't see the redundancy system switch warning, I will forward to the engineers this case to check. Will come back to you once I hear from them.

Hello Thor, thanks. You will see that on 49sec into the video the IMU redundancy switch warning comes up, just before I opened the IMU and compass screen.
2018-4-20
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DJI Thor
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F.KOK Posted at 2018-4-20 07:42
Hello Thor, thanks. You will see that on 49sec into the video the IMU redundancy switch warning comes up, just before I opened the IMU and compass screen.

Hi there, I got an update from the engineers. Could you please help to export the flight log on the drone, upload to Dropbox and paste the link here? The data is requested. Thank you for your help.
2018-4-24
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F.KOK
First Officer
Flight distance : 12112621 ft
Namibia
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DJI Thor Posted at 2018-4-24 19:11
Hi there, I got an update from the engineers. Could you please help to export the flight log on the drone, upload to Dropbox and paste the link here? The data is requested. Thank you for your help.

Ok I will do that.
2018-4-25
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DJI Thor
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Thank you, look forward to your update.
2018-4-25
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F.KOK
First Officer
Flight distance : 12112621 ft
Namibia
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DJI Thor Posted at 2018-4-25 20:57
Thank you, look forward to your update.

https://www.dropbox.com/s/ietjr6 ... 9_15-02-13.DAT?dl=0

Hello Thor, I had to use another computer and install asst 2, because the files do not want to download on mine with asst 2, wonder why, Here are the data. Hope it is in order. Thanks.
2018-4-29
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DJI Thor
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F.KOK Posted at 2018-4-29 05:52
https://www.dropbox.com/s/ietjr64hmso3jkr/DJI_ASSISTANT_EXPORT_FILE_2018-04-29_15-02-13.DAT?dl=0

Hello Thor, I had to use another computer and install asst 2, because the files do not want to download on mine with asst 2, wonder why, Here are the data. Hope it is in order. Thanks.

Thank you for your effort. Had forwarded it to the engineers. Regarding the DJI Assistant 2 issue, I might also need to confirm with the engineers.
2018-4-30
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F.KOK
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Flight distance : 12112621 ft
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DJI Thor Posted at 2018-4-30 01:33
Thank you for your effort. Had forwarded it to the engineers. Regarding the DJI Assistant 2 issue, I might also need to confirm with the engineers.

Thank you appreciate it.
2018-4-30
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F.KOK
First Officer
Flight distance : 12112621 ft
Namibia
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DJI Thor Posted at 2018-4-30 01:33
Thank you for your effort. Had forwarded it to the engineers. Regarding the DJI Assistant 2 issue, I might also need to confirm with the engineers.

Hello Thor, any news on the IMU issue. Thanks.
2018-5-15
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DJI Thor
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F.KOK Posted at 2018-5-15 23:47
Hello Thor, any news on the IMU issue. Thanks.

Sorry mate, I haven't received the reply. But will inform the engineers to speed up the process. Sorry for keeping you waiting.
2018-5-16
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F.KOK
First Officer
Flight distance : 12112621 ft
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DJI Thor Posted at 2018-5-16 23:04
Sorry mate, I haven't received the reply. But will inform the engineers to speed up the process. Sorry for keeping you waiting.

Thanks Thor.
2018-5-17
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DJI Thor
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Flight distance : 13602 ft
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Hi there, the engineers suggest sending the drone in for diagnosis. Please kindly contact the dealer or our support for further help. http://www.dji.com/support
2018-5-17
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