Nokia 500

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Deactivate the compass
Select   again. The map is oriented north.
The compass is active when it is green. If the compass needs calibration, the compass
is red.
Calibrate the compass
Turn the phone around until it beeps or vibrates.
The compass has limited accuracy. Electromagnetic fields, metal objects, or other
external circumstances may also affect the accuracy of the compass. The compass
should always be properly calibrated.
About positioning methods
Maps shows your location on the map using GPS, A-GPS, WLAN, or network (cell ID)
based positioning.
A-GPS and other enhancements to GPS may require transferring small amounts of
data over the cellular network.
GPS
The global positioning system (GPS) is a navigation system that
uses satellites to work out where you are.
A-GPS
The Assisted GPS (A-GPS) network service retrieves location
information using the cellular network, and assists GPS in
calculating your current location.
Your phone is set up to use the Nokia A-GPS service, unless your
network service provider has its own A-GPS settings. To get the
assistance data to your phone, you need to be able to connect to
the internet. Your phone gets the data from the service only when
needed.
Maps
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