uConnect 5 Park Assist not working after update

[MannyN]

So, today I upgraded my 12" uConnect 4 to the new uConnect 5. Replaced the radio module and new screen. The new uConnect 5 screen did not have the park assist button, only the lane keep button and emergency flasher button on the center stack. So, I removed the buttons and control board from my old screen and planted them in the new center stack. Very easy to do. Inserted the ribbon cable in to the new buttons, exact swap, all locks the same. Put every thing back together and fired up the system. All working as it should. Tested all the buttons on the side, all working as they should. Tested the top buttons, flasher working, lane keep assist don't work, (never worked before as I don't have this feature). Pushed the Park assist button, and nothing, not working. This worked perfectly on my old UC4 system. Is this something UC5 related or do the extra button on uc5 don't work?
Hopefully @Jimmy07 had some ideas as what this could be.
Thanks for reading.

 

[MannyN]

So, if anybody want's to know, you can not just add the buttons on top. I had another UC5 screen to test it with. I had a new unit with a broken screen and tested it in my ram. It had the buttons on top with lane keep and park assist. All buttons worked, including the park assist button. After that, i transplanted the top buttons to my screen. Not working. Replaced the main control bord from the broken screen and they work. There must be a different firmware in the control board. So, if you want the park assist to work, you have to get the screen with them already installed. Just replacing the buttons will not work.