When a device cannot be turned on please try the following:
  1. Make sure that no other iOS device is connected to the Cosmo device. Turn off bluetooth momentarily on all your iOS devices and only enable it for the one that you want to work with.
  2. Go to “Advanced settings” . If this is the only device that is turned on, the first circle should be of blue colour.
  3. Press the “Update all firmware” button. The Cosmo device will start updating its firmware and when the process finishes it should be usable again.