ActionUsbDeviceAttached not firing!

Hi,

I have a problem with the broadcastreceiver in xamarin. When I attach my usb device, the OnReceive method is not firing, The strange this is that the OnReceive mehtod DOES FIRE, when I disconnect my device.

Here is my code:

public class UsbDeviceIntentReceiver : BroadcastReceiver { public UsbDeviceIntentReceiver() { Factory.Instance.UsbFilter = new IntentFilter(); Factory.Instance.UsbFilter.AddAction(Factory.Instance.ACTION_USB_PERMISSION); Factory.Instance.UsbFilter.AddAction(UsbManager.ActionUsbDeviceAttached); Factory.Instance.UsbFilter.AddAction(UsbManager.ActionUsbDeviceDetached); Factory.Instance.MainActivity.RegisterReceiver(this, Factory.Instance.UsbFilter); }

        public override void OnReceive(Context context, Intent intent)
        {
            if (Factory.Instance.ACTION_USB_PERMISSION == intent.Action && intent.GetBooleanExtra(UsbManager.ExtraPermissionGranted,false))
            {
                if(Factory.Instance.Device == null)
                    Factory.Instance.Attach();
            }
            else if (UsbManager.ActionUsbDeviceDetached == intent.Action)
            {
                var usbDeviceReceived = (UsbDevice)intent.GetParcelableExtra(UsbManager.ExtraDevice);
                if (Factory.Instance.Device != null && usbDeviceReceived != null && Factory.Instance.Device.DeviceId == usbDeviceReceived.DeviceId)
                {
                    Factory.Instance.Detach();
                }
            }
        }
    }

Thanks