problem with accessing the build-in GPS on nokia (N95)

[RiskyHunter]

i bought nokia N95 which has JSR-179 support.

however i couldn't communicate with the GPS receiver to get the location

this is the code:

Criteria cr = new Criteria();
cr.setCostAllow ed(false);
cr.setSpeedAndC ourseRequired(t rue);
cr.setHorizonta lAccuracy(500);
cr.setAltitudeR equired(true);
LocationProvide r provider = LocationProvide r.getInstance(c r);
Location location = provider.getLoc ation(30);
System.out.prin tln("Method : " + location.getLoc ationMethod());
QualifiedCoordi nates co = location.getQua lifiedCoordinat es();
if (co != null) {
System.out.prin tln("Long: " + co.getLongitude ());
System.out.prin tln("Lat : " + co.getLatitude( ));
System.out.prin tln("Alt : " + co.getAltitude( ));

Result:

Method : 0
Long: 0.0
Lat : 0.0
Alt : 0.0

i really don't know whats the problem T_T;
plz reply as soon as possible;