How to troubleshoot a malfunctioning MMI system in an Audi A7?

I recently noticed that my MMI system in my Audi A7 is not functioning properly. The screen freezes and the buttons do not respond. How can I fix this issue?

First, try resetting the MMI system by holding the [Setup] and [Menu] buttons at the same time. If that does not work, check the connections of the system and make sure they are all secure. If the issue persists, you may need to bring your car to an authorized dealership for further diagnosis and repair.

Check if your car's software is up to date and if not, update it using the Audi MMI connect app. If that does not solve the issue, there may be a hardware problem and you should bring your car to a certified Audi technician for assistance.