Navigation has been working without any problems for a long time. (previously had issues, but turns out original dvd was too scratched up, so a replacement dvd fixed it)

Its a mk4 unit with V28 software update.

Original dvd - 2002-1
Replacement dvd - 2007-1
New dvd - 2007-2

Few weeks ago, Navigation stopped working, everytime i click on navigation, it says please wait, takes a few minutes, then errors out, no dvd in the unit, or cannot read the dvd. (similar symptoms when i had the first issue long time ago)
So i thought maybe i scratched up the dvd. Found a small scratch.
Ordered another dvd, tried it today and same errors.

So i'm not sure if its the new disc that i got that's bad? or the unit itself.
I had my software update disc handy, and popped that in...the unit read it right away and tried to update. So now i'm puzzled.

What do you all think? advise? tips? Any way to test if the unit is still good? Last resort is to buy a replacement unit (pricey)

Thanks
Franklin

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Franklin Joseph
11 X5d - 01 325 - 11 1M