Open Settings
and select General > Positioning > Positioning methods.
With the Positioning service, the location of your device can be detected, and the information can be used by other applications in your device.
For example, Landmarks allows you to save particular locations in your device to make it easier to navigate to them.
To use a specific positioning method to detect the location of your device, select the method, Options and from the following:
The settings available for editing may vary.
The Access point
GPS
positioning method can only be linked to one device at a time. To change the Bluetooth GPS device, open Bluetooth > Paired devices and remove the existing GPS device.
You may not be able to edit settings for all positioning methods.