The cordova-plugin-bluetoothle plugin - the startScan method does not see the device. Why?

Question

Android

Hello.
I'm trying to use a bluetooth device in the application, namely the button (selfie).
I use plugins
for angularjs
https://github.com/Jewelbots/ng-cordova-bluetoothle
and for cordova
https://github.com/randdusing/BluetoothLE

$scope.bleDeviceScan = function() {
            $ionicPlatform.ready(function() {
                return $cordovaBluetoothle.initialize(params)
                    .then(function () {
                        //successfully initialized
                        return $cordovaBluetoothle.startScan(startScanSuccess, handleerror,
                                { 
                                    services: [],
                                    "allowDuplicates": true,
                                    "scanMode": bluetoothle.SCAN_MODE_LOW_LATENCY,
                                    "matchMode": bluetoothle.MATCH_MODE_AGGRESSIVE,
                                    "matchNum": bluetoothle.MATCH_NUM_MAX_ADVERTISEMENT,
                                    "callbackType": bluetoothle.CALLBACK_TYPE_ALL_MATCHES,
                                }).then(function (data) {
                            //successfully initialized
                            $scope.deviceStatus = 'Found device: ' + JSON.stringify(data);
                            return data; 
                        }, function (err) {
                            //error trying to initialiez
                            $scope.deviceStatus = 'Error:' + JSON.stringify(err);
                        });
                    }, function (err) {
                        //error trying to initialiez
                        $scope.deviceStatus = 'Error:' + JSON.stringify(err);
                    });

            });
        };

Initialization goes fine, shows status: enabled
but startScan returns an empty object
What am I doing wrong?
Ps The android itself sees and connects this button, and automatically when turned on, but it is not visible in the application.

Answer 1

Haven't solved the problem? I have the same bug...