How can I reset my Audi A1's infotainment system?

I accidentally deleted some important settings and I can't seem to find a way to reset my infotainment system on my Audi A1. Any help would be greatly appreciated.

The easiest way to reset your Audi A1's infotainment system is by pressing and holding down the center knob on your MMI system for about 10 seconds. This will reset all settings to factory defaults.

If holding down the center knob doesn't work, another option is to go to the Settings menu on your MMI system and look for the option to reset all settings. This will have the same effect as pressing and holding down the knob.

In some cases, you may need to completely disconnect your car's battery for a few minutes to fully reset the infotainment system. Just make sure you have your car's radio code handy before doing this.