I’ve tried several ways to create a map to be used in my Nüvi 205w but I just failed over an over again
I always got the message
“No detailed maps found that support routing. The Nüvi cannot be used without them”
What I did
I downloaded a portion of the map form JOSM in .osm format
Method A
I convert the .osm file using mkgmap into gmapsupp.img using → java -jar mkgmap.jar --gmapsupp map.osm
Copied it to the internal memory of the Garmin and got the message above
Method B
Convert the .osm file using → java -jar mkgmap.jar map.osm
Got an image file called 63240001.img
Convert the 63240001.img into a gmapsupp.img using → java -jar mkgmap.jar --gmapsupp 63240001.img
Copied it to the internal memory of the Garmin and got the message above
Method C/D/E
Using sendmap20.exe either to upload or create the gmapsupp.img
I always failed
(I’m frustrated, ha ha ha ha)
Can someone tell me what I’m doing wrong or better what should I do to get a routable map