A compass is a navigational instrument that indicates the direction to the magnetic poles. It's one of the sensors present in most Android devices.

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Why doesn't Android compass react to magnet?

I downloaded Compass program for Android and tried to bring strong magnet close to it. The pointed remained stable, as if there was no magnet nearby. Here is the video proof on YouTube. I have ...
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Is there a way to re-calibrate the compass on my Android Galaxy s6, with verizon as my carrier?

I need to re-calibrate the compass on the my Android Galaxy Edge 6s. I read that I must first go to the secret menu, which can be accessed through the code #0# being typed into the dial pad of the ...
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Compass only working in GPS status app, not in any other apps

On my Nexus 5 (Android 6.0) the compass is working fine in the well known GPS Status & Toolbox app, but not in any other app like Google Sky Map. To debug the problem, I installed a dedicated ...
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compass in Google Maps stopped working (Xperia V CM 12.1)

In the Google Maps app the compass of my Xperia V (model identifier: LT25i | codename: Tsubasa) doesn't work properly anymore (only 180 degree flips). To be more precise the compass already stopped ...
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apps fail to access orientation & magnetic sensors

I've just started using a Doogee Nova Y100X Android-based phone (it's android 5.0). It seems that my apps can only access some of the phone's sensors: accelerometer seems to work, proximity and ...
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Are the reference frame for Android and iOS different?

I am currently trying to get an accurate estimate of trueHeading for Android as asked here. I also tried to use TYPE_ROTATION_VECTOR which outputs a 4D Quaternion and converted these Quaternions to ...