GS Jim is correct, the GS911-Blu is able to diagnose models with the old K-Line diagnostics only, BMW moved to CAN-Diag on new models, it is a higher speed protocol on different pins in the socket hence the need for the GS911-WiFi which has both K-Line & CAN-Diag capability. The two protocols are so different in speed and operation that different hardware interfaces are needed so it is not just a case of using an adaptor cable