Using the Full version of v51.3, users can flash new firmware to individual ECUs. This includes:

Always ensure your Psdzdata version is compatible with your car's current i-level (software version). If your car has been updated by the dealership recently, you may need a newer Psdzdata than 51.3. Conclusion

If you have already started the process, I can also help you: connection issues with your ENET cable

: A high-quality OBD2-to-Ethernet (RJ45) cable. This cable uses specific resistors to bridge the BMW internal network directly to your laptop's network card.