How to perform a hard reset on an Audi A7?

I accidentally deleted some important data on my Audi A7 and I want to perform a hard reset to restore everything. Can someone guide me through the steps?

To perform a hard reset on your Audi A7, first turn off the car. Then, press and hold the start button for 10 seconds. After that, release the button and wait for 30 seconds before starting the car again. This should reset all the systems in your car.

Another way to perform a hard reset is by disconnecting the negative terminal of your car's battery for a few minutes. This will reset all the systems and settings in your car.