[Q] Compass issues
I have seen several threads reporting compass issues in this forum. I posted one a few weeks ago as well. I have done some troubleshooting and I have now realized that my compass works fine unless I am in my car. This is very strange because I have had this car for several years and I have gone through several phones and have never had this problem. It's like my car is some kind of Faraday cage!
The symptoms are especially visible in google maps. Apparently they use the compass heading instead of the gps course to determine which way to turn the map. The arrow in the center almost always shows me driving sideways down a road. Also if I use the famous GPS Status app, the compass arrow in the middle never comes close to the actual GPS heading. Specifically, my compass always like to point somewhere to the west. If I am travelling to the east (090), my compass will point somewhere to the west (perhaps 270). But if I am travelling due south (180), the compass may point to something like south west. And if I am travelling to the west, there is a good chance the compass will be in agreement and also show me travelling to the west. Maybe I should alter my driving habits to only drive to the west.
But all of these symptoms go away if I am out of my car. If I go for a walk, the compass is fine. It is so obvious that I can stand outside of my car and get a heading, and then take the phone in my car and get a completely, wildly different heading.
I have tried the compass calibration in the GPS Status app, but that has made no difference.
Are there any engineering key codes that can test the compass, or perhaps change the sensitivity on it or something? Is there anything else I can do other than the compass calibration? Anyone have any idea what in my car might be throwing off the compass in the first place?