Re-verify Device Manager settings; ensure latency is at 1ms. Missing FTDI or CH340 serial-to-USB drivers. Install the specific driver matching your cable chip. Unresponsive Key Fob After Flash Minor software desynchronization.
The free, official software is a great starting point for understanding what the tool can do. It works with 3rd generation Comfort Control Modules (part number 1C0 959 799). Its features are focused on basic diagnostics: motordiag komfort manager full 20 18l repack
Connect the cable to the car's OBDII port, turn the ignition to the "ON" position, and select the correct COM port in MKM. Conclusion Re-verify Device Manager settings; ensure latency is at 1ms