c# - How can I connect to a Bluetooth service on Gear S3? -

i writing web app gear s3 , companion win-app uwp in c#. want do: s3 acting bt server, sending data, , win-app client, supposed receive data. in tizen used registerrfcommservicebyuuid() function below:

function publishtransferservice() {  if(remotedevice.isconnented){     console.log("connection status: " + remotedevice.isconnected);     var trans_service_uuid = '5bce9431-6c75-32ab-afe0-2ec108a30860';     adapter.registerrfcommservicebyuuid(trans_service_uuid, 'my service', servicesuccesscb,             function(e) {         console.log( "could not register service record, error: " + e.message);     }); }else{     console.error("connection status: " + remotedevice.isconnected);     }  

in c# try connect service follows:

        //to ulong converted mac-address of gear         ulong gearbtaddress = 145914022804881;         //create device-instance of gear         bluetoothdevice geardevice = await  bluetoothdevice.frombluetoothaddressasync(gearbtaddress);         //list services found on gear , connect 1         //the same uuid in tizen         var gearservices = await geardevice.getrfcommservicesasync();         foreach (var service in gearservices.services)         {             if(service.serviceid == rfcommserviceid.fromuuid(guid.parse("5bce9431-6c75-32ab-afe0-2ec108a30860")))             {                 _service = await rfcommdeviceservice.fromidasync(service.tostring());             }          } 

the problem facing is, c# won't find wanted uuid, although finds several other uuids. don't see gets lost?

thanks in advance.

i solved myself, problem was, uuid uncached. adding following do:

        var cachemode = bluetoothcachemode.uncached;         var gearservices = await geardevice.getrfcommservicesasync(cachemode);