How do I troubleshoot the MMI display screen in my Audi A5?

I have noticed that the MMI display screen in my Audi A5 is not functioning properly. The screen is frozen and does not respond to any touch or button inputs. How can I troubleshoot and fix this issue?

First, try resetting the MMI system by pressing and holding the MENU button for 10 seconds. If this does not work, check all the connections between the display screen and the vehicle's computer. Sometimes loose connections can cause display issues.

If the screen is still not functioning after resetting and checking the connections, there may be an issue with the display screen itself. It could be a hardware malfunction and you may need to get it replaced by a certified technician.

In some cases, a software update may fix the issue. Check for any updates available for the MMI system and install them if necessary. This could potentially resolve the problem with the display screen.