I upgraded the benulux and German maps but after this I don't have any naviagtion functions anymore.
Someone told in an other form to upgrade tot 8.20 so I did.
My RT4 now starts up with the new logo, but no navigation get.
What was your software version when you updated the maps? If you don't know tell me the year of the car, and tell me when you bought it.
What do you mean exactly by no navigation features?
Did you burned the cd yourself for maps update?
I've the same problem, software Version 8.20(rt5). Instead of the maps you will see only the location coordinates.
Benelux and Italia where updated to 2012 maps.
After that I used your speedcam file
Upgraded the Central Europa maps, after that maps where gone. If I try to updated again the speedcams I get with the same USB stick, CD damaged or files not complete. I tried it with several USB sticks and 3 different ways of cd burning but it won't load the speedcam files anymore.
Upgrading Central Europa or even Benelux or Germany, maps are updated but you cannot the maps, have you ever heard before from this.