I develop simple j2me bluetooth client and have problem with bluetooth device search. Function startInquiry nothing found.

Client : nokia 5220 Server : my pc with bluetooth adapter

All bluetooth devices is on.

/* * To change this template, choose Tools | Templates * and open the template in the editor. */

import javax.microedition.midlet.*;
import javax.bluetooth.*;
import java.util.Vector;
import javax.microedition.lcdui.*;

/**
 * @author ?????????????
 */
public class Midlet extends MIDlet implements DiscoveryListener
{
    private static Vector vecDevices=new Vector();
    private static String connectionURL=null;
    private LocalDevice localDevice;
    private DiscoveryAgent agent;
    private RemoteDevice remoteDevice;
    private RemoteDevice[] devList;
    private Display display;
    private Form form;

    public void startApp() {
        display = Display.getDisplay(this);
        form = new Form( "Client" );
        try {
            localDevice = LocalDevice.getLocalDevice();
        } catch( BluetoothStateException e ) {
            e.printStackTrace();
        }

        form.append("Address: "+localDevice.getBluetoothAddress()+"\n\n");
        form.append("Name: "+localDevice.getFriendlyName()+"\n\n");

        try {
            agent = localDevice.getLocalDevice().getDiscoveryAgent();

            form.append("Starting device inquiry... \n\n");

            boolean si = agent.startInquiry(DiscoveryAgent.GIAC,  this);
            if ( si ) {
                form.append("true");
            } else {
                form.append("false");
            }
        } catch( BluetoothStateException e ) {
        }

        int deviceCount = vecDevices.size();
        if(deviceCount <= 0){
            form.append("No Devices Found .");
        }
        else{
            //print bluetooth device addresses and names in the format [ No. address (name) ]
            form.append("Bluetooth Devices: ");
            for (int i = 0; i < deviceCount; i++) {
                remoteDevice=(RemoteDevice)vecDevices.elementAt(i);
                form.append( remoteDevice.getBluetoothAddress() );
            }
        }

            display.setCurrent(form);
    }

    public void pauseApp() {
    }

    public void destroyApp(boolean unconditional) {
    }

        public void deviceDiscovered(RemoteDevice btDevice, DeviceClass cod) {
              //add the device to the vector
              if(!vecDevices.contains(btDevice)){
                  vecDevices.addElement(btDevice);
              }
        }
        public void inquiryCompleted(int discType)
        {
        }


          //implement this method since services are not being discovered
          public void servicesDiscovered(int transID, ServiceRecord[] servRecord) {
              if(servRecord!=null && servRecord.length>0){
                  connectionURL=servRecord[0].getConnectionURL(0,false);
              }
          }
          //implement this method since services are not being discovered
          public void serviceSearchCompleted(int transID, int respCode) {
          }
}