I need the best repair manual (online or hardcopy) out there for my 2010 Audi Q5. Anyone have any suggestions?

I have a 2010 Q5. In an attempt to resolve an issue with my oil level indicator on the MMI display I read where I could hold a few buttons down to reset the MMI. After I did this I soon realized my backup camera had stopped working. I'm not sure that I caused the camera issue but it seemed to occur almost immediately. When I shift to reverse now I have no camera and the parking button sounds an alarm and flashed its yellow light till I press it. Is there a way to check if i have somehow deactivated?