Hi, I downloaded Q3 maps 2015 update.
I replaced the files from the maps with the files on my device, and it will not detect the maps after reboot of my VW Up! device....

Any hints or tips?

same problem with a Navigon 42 easy ...

I'm brandnew here, but i think i know the answer.
Connect your system to computer > Go to folder "Map" > Rename your file "Mapdrawer" in "Mapdrawer_Seat", "Mapdrawer_VW", or "Mapdrawer_Skoda"
Dont forget to copy also all the new NFS data to your MAP folder!!

Groet uit Nederland (dutch greetings )

You need also mapdrawer*.nfs, etc files, not just *.maps.
I also had to change in the settings to use new version of the map.
It works! thanks for your help.