I have a BBU bluetooth device. Device Name is IPRO-BBU.
I don't change BBU bluetooth device's connect status(ET1>Setting>Bluetooth>pair device) in ET1 by using
Rho::BluetoothManager.create_client_connection_to_device("IPRO-BBU", url_for( :action => :connection_callback))
or
Rho::BluetoothManager.create_session(Rho::BluetoothManager::ROLE_CLIENT, url_for( :action => :connection_callback))

There always return status=ERROR
by RhoElement version 4.0.0.