Climate settings are not displayed on the screen???

Hello, I am going to buy my 2011 milles 407. I'll go and test the car today, frankly, I like it. However, there is an issue that I cannot solve. He stated that the screen is original, the person I will buy and the setup on the tape works in harmony with keys such as navi. For this reason, I do not think that there is a problem with originality, but the air conditioner keys are active and working; nothing appears on the screen, so what degree are you at, at what level, at the end etc. You can't see anything. The person I bought said that the room was a dealer. What could be the reason??? Anyone experience this?

Everything navi etc. except the air conditioner. It works, it's the first time I've encountered such a thing, it is necessary to determine the temperature by speed, etc. :) Also, it seems like FM receives very little, most standard channels do not receive, I think there is an antenna or antenna connection problem

As far as I have found by searching the forum, the previous owner has an android screen. That's why it doesn't come out. So is there an updated solution to activate it?