Also hardware retrofit.

I disabled the START/STOP function in the car settings, but it does not work as expected. It turns out that the button is disabled and does not respond, but the function itself continues to work, i.e. the car turns off the engine when stopped at traffic lights. Is this how this function is supposed to work? Or did I do something wrong?

Problem solved. BT is working properly and streaming too.

That's why I replaced the screen and BT module with one that should enable streaming. After replacing the modules, everything works, so someone had already disabled the MOST lock. There was a Polish screen with the inscription D5T5, so I assume that someone had already tampered with the car.
I understand that VDASH does not have the PIN for my car, even though I think the PIN had already been extracted earlier. I will see if it is possible to extract the PIN using the AI method, but as mentioned earlier, I have to do it during business hours, i.e. Monday to Friday.

Yes, I know that you don't need a PIN to change the language.

I need to start streaming, and I think I need a PIN from CEM for that?
Best regards,
Bartek

Thank you for your answers.
I still don't understand something. Vdash cannot decode the PIN, OK, but I replaced the screen on the centre panel and the old panel was in Polish and had the inscription D5T5, so someone probably made it Polish, Vdash? So where am I going wrong (Polish version)? Another question: will I get the PIN for CEM from the Volvo dealer?
Best regards,
Bart

Hello,
I have two questions:

1. I have installed Polish language, but only the messages on the clocks are in Polish. The interface on the centre panel is still in English. How can I change this?
2. I need to unlock the PIN for CEM, but two options are greyed out (normal decoding or Ai) and I cannot select anything. What am I doing wrong?
   Best regards,
   Bart