private void OnBackPressed(object sender, BackPressedEventArgs e)
{
if (this.Frame.CanGoBack)
{
DeviceVM.UnregisterVMFromModel();
this.Frame.GoBack();
e.Handled = true;
// Unregister notifications off the UI thrad
Utilities.RunFuncAsTask(GlobalSettings.SelectedDevice.UnregisterNotificationsAsync);
}
}
