Moving to more appropriate forum.

What problem are you having? I do not think there is a comprehensive user guide out there. Look in the GPS & Mapping Forum for more info.

To get a good GPS signal, especially for the first time, you need to make sure location services is turned on, then go outside, with a clear view of the sky and let the device find you. Could take 20 minutes or so to do this.

Using a map application such as GoogleMaps is a good idea since it uses cell tower triangulation to locate you within 1700 to 2500 meters until GPS locks on.