Use the compass
When the compass is activated, both the arrow of the compass and the map rotate automatically in the direction to which the top of your phone is pointing.
Select Menu > Maps and Map.
Select again. The map is oriented north.
The compass is active when it is green. If the compass needs calibration, the compass is red.
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.