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Compass bug

ColorSage
Zen Master I
Hello again, 
my magnetic field sensor is quite unstable under several circumstances. I don't think this is a hardware issue so it can be reproduced. It works fine in home but it loses its accuracy ouside:
a) inside metal objects (i.e. cars and buses) - as you rotate the phone the N sign moves unpredictably. Try to notice direction of north, then rotate phone by 90 or 180 degrees. There will be significant difference in measured change and real movement.
b) near strong electromagnetic field - (i.e.  electric lines) - N can drift off of its original place
c) inside some vehicles lags in measurements can also be noticed. 
Basically you can go to the center of a city and look at any compass app. You should be able to reproduce it.
11 REPLIES 11

evnchn
Rising Star II
Even if it says you are accurate, calibrate it in 8 figure "dancing" the phone. Don't forget to free up your hand joints and let it have 3 axis rotation. Afterwards it should be demagnetized and should have good accuracy, just tried that and worked. 

ColorSage
Zen Master I
Problem resolved with .189 or .191 update. Thanks ASUS.