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Radar wrong orientation
3771 18 2019-12-7
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the1shark
lvl.4
Flight distance : 43156 ft
Israel
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Mavic was updated to the 0.300 firmware, phone is Iphone Xr App version 1.03.
I still can get this radar to show the right orientation.
MM has a lot of signal issue ( at least the CE version ) , This radar window might help in some cases.
So why it is still not working ?

2019-12-7
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DJI Mindy
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Flight distance : 7 ft
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Hi there, the calculation of the orientation of the Radar in the DJI Fly needs to obtain the GPS of the mobile device and the orientation of the compass, therefore, it is necessary to turn on the permission of your phone's GPS and compass to DJI Fly;
It is recommended to calibrate the mobile phone's compass before the flight;
GPS position accuracy is easily affected by obstructions such as buildings. Please fly the drone in open areas.
2019-12-9
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fans4151e1bc
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Flight distance : 207579 ft
India
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I've given up on that. using the map now. That works well.
2019-12-10
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JJB*
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fans4151e1bc Posted at 12-10 00:28
I've given up on that. using the map now. That works well.

Don`t give up !  i have several devices and after good calibration it does work

Map orientation does work without compass info from mobile device, that`s why it works great if drone compass is oke.
2019-12-10
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InspektorGadjet
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Flight distance : 439915 ft
Spain
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DJI Mindy Posted at 12-9 22:59
Hi there, the calculation of the orientation of the Radar in the DJI Fly needs to obtain the GPS of the mobile device and the orientation of the compass, therefore, it is necessary to turn on the permission of your phone's GPS and compass to DJI Fly;
It is recommended to calibrate the mobile phone's compass before the flight;
GPS position accuracy is easily affected by obstructions such as buildings. Please fly the drone in open areas.

Can you explain us how to "allow the compass" permission to the DJI FLY APP? I use iOS but explanation for Android would also help.
2019-12-10
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InspektorGadjet
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InspektorGadjet Posted at 12-10 02:09
Can you explain us how to "allow the compass" permission to the DJI FLY APP? I use iOS but explanation for Android would also help.

Ok so I answer myself. Is not allowing the Compass to be used by DJI FLY APP, but allowing data to be used by the compass while not in wifi, I went for a walk turned the compass on and it asked me to allow data use in settings. Mine was turned Off, so this may be my issue, still have to test it with a flight, will report back when tested.
2019-12-10
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the1shark
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InspektorGadjet Posted at 12-10 03:05
Ok so I answer myself. Is not allowing the Compass to be used by DJI FLY APP, but allowing data to be used by the compass while not in wifi, I went for a walk turned the compass on and it asked me to allow data use in settings. Mine was turned Off, so this may be my issue, still have to test it with a flight, will report back when tested.

I have an IOS device . Can you explain what you just did ??
2019-12-10
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the1shark
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Flight distance : 43156 ft
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DJI Mindy Posted at 12-9 22:59
Hi there, the calculation of the orientation of the Radar in the DJI Fly needs to obtain the GPS of the mobile device and the orientation of the compass, therefore, it is necessary to turn on the permission of your phone's GPS and compass to DJI Fly;
It is recommended to calibrate the mobile phone's compass before the flight;
GPS position accuracy is easily affected by obstructions such as buildings. Please fly the drone in open areas.
Thank you for your reply. You wrote :
it is necessary to turn on the permission of your phone's GPS and compass to DJI Fly
How do I do this on An ISO device ?

and also :
"It is recommended to calibrate the mobile phone's compass before the flight"
And how do I do that on An ISO device ?

BTW
DJI Fly app has access to Location Service.

2019-12-10
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davidms
Second Officer
Flight distance : 428186 ft
Canada
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I believe the answer is you need to go into Settings > Cellular. Scroll down to find Compass and allow it to use Cellular data.
2019-12-10
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Part107
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davidms Posted at 12-10 11:37
I believe the answer is you need to go into Settings > Cellular. Scroll down to find Compass and allow it to use Cellular data.

Did you find that on your ISO device?
2019-12-10
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the1shark
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Part107 Posted at 12-10 11:56
Did you find that on your ISO device?

That's what happens when you type from an ios device ..
found it, cellular data is enable from day 1. Does this mean my compass is calibrated ?
There is a different settings under privacy>location services>system services>compass calibration and it is enabled.
2019-12-10
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Sigmo
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"I believe the answer is you need to go into Settings > Cellular. Scroll down to find Compass and allow it to use Cellular data."

I don't think my phone needs to have cell reception for its compass to work.  Instead, it actually has a dual (possibly three) axis magnetometer built in.  The compass works even in areas where there is no cell coverage.  The GPS as well, of course.  But I have to download maps for the areas where I'll be for the GPS mapping to work in those "no coverage" areas because, of course, the phone cannot download maps "on the fly" if there's no data coverage.

So I'm wondering if it's really true that you need to enable some sort of cell data coverage to use this feature.

2019-12-10
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davidms
Second Officer
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Sigmo Posted at 12-10 12:59
"I believe the answer is you need to go into Settings > Cellular. Scroll down to find Compass and allow it to use Cellular data."

I don't think my phone needs to have cell reception for its compass to work.  Instead, it actually has a dual (possibly three) axis magnetometer built in.  The compass works even in areas where there is no cell coverage.  The GPS as well, of course.  But I have to download maps for the areas where I'll be for the GPS mapping to work in those "no coverage" areas because, of course, the phone cannot download maps "on the fly" if there's no data coverage.

I don’t know if data is needed for compass or not - I’m just referring to the setting that inspectorgadget changed and will report back after he’s tested. My compass works while my phone is in airplane mode so I’m not sure if enabling data will fix/calibrate compass to correct the orientation problem. I have the incorrect orientation on in DJI fly also.
2019-12-10
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DowntownRDB
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the1shark Posted at 12-10 12:49
That's what happens when you type from an ios device .. [view_image]
found it, cellular data is enable from day 1. Does this mean my compass is calibrated ?
There is a different settings under privacy>location services>system services>compass calibration and it is enabled.

On my iOS I go to privacy, location, services, systems services, compass calibration and make sure it is ON.  

Then I open the built-in Maps App and follow the on-screen prompts to get an accurate location reading.
Press the lower left side arrow till it points up.
If your compass is NOT calibrated, a Calibration Circle screen will pop-up and you will be able to calibrate the compass by filling out that circle with figure 8 movements in the air.
At the end of this process you will note that the blue line of sight in the Maps application is pointing to the correct direction.
Your compass is now calibrated properly.

When you calibrate your compass make sure you away from bulk metal, etc.
2019-12-10
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Part107
Captain
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the1shark Posted at 12-10 12:49
That's what happens when you type from an ios device .. [view_image]
found it, cellular data is enable from day 1. Does this mean my compass is calibrated ?
There is a different settings under privacy>location services>system services>compass calibration and it is enabled.

Used to be for an Android phone (as i am not as well acquainted with an iPhone even though i have a 6S+) we used to move the phone in a circle 8 to get the compass set in the Google Maps app to work correctly for directions. I haven't seen a prompt for that in many years now.

Someone with iOS knowledge know about the IOS system to add to this?
2019-12-10
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InspektorGadjet
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Spain
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After doing some tests yesterday I managed to get correct reading of the compass.

Basically, with iOS Compass APP opened, the DI FLY APP did get the correct orientation, but as soon as I move the RC the arrow would go from Front to indicate the AC is behind me (which is wrong). Since the compass keep telling the AC is behind no matter what, I swapped my phone 180 degrees... and it works...

Now the USB connector of the phone is at the right, the orientation shows correctly as long I keep my body in the same position, that means let say I take off with my body facing north, I have to keep my body in that direction for the whole flight duration or the orientation is wrong.
Hope it helps!
2020-1-4
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BKahuna
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I don't think the compass in your phone has anything to do with the flight of your Mavic.  The Mavic has its own compass and that's the only one it uses.  The only thing that uses the compass in your phone is the "radar" chart.  Because that shows the relative orientation of the drone to the remote, it has to know which way both are pointed.  The map view does not require the compass in your phone.
2020-1-6
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JJB*
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BKahuna Posted at 1-6 11:42
I don't think the compass in your phone has anything to do with the flight of your Mavic.  The Mavic has its own compass and that's the only one it uses.  The only thing that uses the compass in your phone is the "radar" chart.  Because that shows the relative orientation of the drone to the remote, it has to know which way both are pointed.  The map view does not require the compass in your phone.

true, i use my mob device with the top to the left in the RC clamps, good aircraft orientation in the flyapp.

If i use the device the other way....you don`t see the craft in the radar dsiplay as it only shows the forward 180 of the circle.

cheers
JJB
2020-1-6
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JodyB
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the1shark Posted at 2019-12-10 12:49
That's what happens when you type from an ios device .. [view_image]
found it, cellular data is enable from day 1. Does this mean my compass is calibrated ?
There is a different settings under privacy>location services>system services>compass calibration and it is enabled.

I use iOS and android os both, and tying for me is the same, wonder where the problem is there?? LOL!!! I blame autocorrect.

For me, to get the calibration of the compass on my iPhone XR, I had to reset my location services. It was kind of a pain in the behind as I had to go back through each app as I used them and allowed or disallowed permission to use location and such. But that was not long after I got my mini and this issue was first brought up. It's been pretty accurate since, for me anyway.

2020-1-6
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