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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How can I calibrate the compass on my phone?

Google Maps sometimes asks me to calibrate my compass. Last time it did so, I was in a rush and didn't bother to, and now the compass does seem a bit off. I tried to find a "calibrate compass" ...
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How do I get my GPS working in Android 4.1 Jelly Bean?

Recently I've been having all sorts of troubles with audio and GPS and the compass... I tried different ROMs, different kernels, different patches. The short story is that after a long time spent ...
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Compass north and south are reversed on my Samsung Galaxy 2

Since upgrading my phone to ICS, my compass is reversed, with the north end pointing south. I have tried waving the phone in a figure 8 pattern and flipping it over on all axis. What can I do to get ...