Hey Mercedes freaks.
Hope there is an expert i NTG4 Navigation System here, cause I got great problems.
I have tried to update the navigations maps in my S204. While updating I got a read error from the CD/DVD in my car, but after a reload the update succeded.
Well - almost succeded.
After the update, my Nav-system can't find around in 2 countries - including Denmark, where I live, but the rest of the countries got no problems !!
Because it's impossible to update a MAP VERSION to the same VERSION that already is installed in the navigationssystem again, I need to reset the internal harddisks in the Navigationssystem.. Can anybody tell me how this is done ?
The engineer-menu doesn't help on this point.

Kr Michael / Denmark

 

You can re-install an older version as well. I have done it in the past.

Try to install the older version first and then upgrade it to the newest version.