My navigation does not work, HELP!

What is your question?

A few months ago, my navi had an error message to contact dealer. I researched, found a you tube video describing a solution (clean lens). Did what it suggested and didn't work. I found that you can send navi to alpine for $365 for repair. The car is not even 6 yrs. old for me to have to spend that kind on $ to have it repaired. Warrany not valid anymore Dealer charges $400+ to repair. Anyone have a better suggestion?