raspberry pi noble bleno , how can I get the the manufacturerData and also get the service?

This is some part of my bleno program :

    bleno.on('stateChange', function(state) {
      //console.log('on -> stateChange: ' + state);

      if (state === 'poweredOn') {
        console.log('bleno on ' + state);
        //bleno.startAdvertising('project', ['ec00']);
        advertisementData = new Buffer(manufacturerData, "hex");
        bleno.startAdvertisingWithEIRData(advertisementData);
      } else {
        console.log('bleno off ' + state);
        bleno.stopAdvertising();

      }
    });

    bleno.on('advertisingStart', function(error) {

        console.log('bleno advertisingStart ' );

        if (!error) {

        bleno.setServices([
          new BlenoPrimaryService({
              uuid: 'ec00',
              characteristics: [
                  new Characteristic({
                      uuid: 'ec0e', 
                      properties: [ 'read' ], 
                      value: 'true', 

                  })

                  ]

            })
           ]);

        } 



    });

this is some part of my noble program :

noble.on('scanStart', function(error) {

  console.log('noble scanStart ' );


     setTimeout(function() { 
        noble.stopScanning();
    }, 1500); 



});


noble.on('discover', function(peripheral) {


        peripheral.connect(function(err) {      

            peripheral.discoverServices( [id],function(err, services) {

                services.forEach(function(service) {
                    console.log('found service: ', service.uuid);
                    s_id = service.uuid;

                    service.discoverCharacteristics([], function(err, characteristics) {

                        characteristics.forEach(function(characteristic) {

                            console.log('found characteristic: ', characteristic.uuid);
                            console.log('characteristic value: ', characteristic.value);
                            c_id = characteristic.uuid;

                            //console.log('serviceUuids  characteristicUuid : ' + s_id + ' '+ c_id);

                        });


                    });

                });



            });

            console.log('serviceUuids  characteristicUuid : ' + s_id + ' '+ c_id);

        });

     console.log('peripheral discovered (' + peripheral.id +
          ' with address <' + peripheral.address +  ', ' + peripheral.addressType + '>,' +
          ' connectable ' + peripheral.connectable + ',' +
          ' RSSI ' + peripheral.rssi + ':');
     console.log('\thello my local name is:');
     console.log('\t\t' + peripheral.advertisement.localName);
     console.log('\tcan I interest you in any of the following advertised services:');
     console.log('\t\t' + JSON.stringify(peripheral.advertisement.serviceUuids));

     if (peripheral.advertisement.manufacturerData) {
        console.log('\there is my manufacturer data:');
        console.log('\t\t' + JSON.stringify(peripheral.advertisement.manufacturerData.toString('hex')));
     }

});

I found that the program can only write a " bleno.startAdvertising " Because my program must advertise manufacturerData, so only wrote bleno.startAdvertisingWithEIRData(advertisementData); But this way I can only receive the manufacturerData, we can't find the service from bleno.

Sometimes it work, but not very often .

Why???

Please help me!!! Thx.

via Vincent Lin