by alectronic » Thu Nov 21, 2024 6:36 pm
Update, works perfectly - I used "NT2025.10-Western Europe.img":
1. rename "NT2025.10-Western Europe.img" to "gmapsup1.img"
2. create folder on SD-Card "Garmin"
3. copy "gmapsup1.img" in the "Garmin" folder
4. place the SD-Card into the nüvi 250W
5. be patient around 20 seconds (it's an older slower device) - but then under "settings/maps" the new map will be available. Feel free to unselect the older on-device map to save the device some resources and you some time and only use the new map.
Sadly 2025.10 will be the last official NT map release from Garmin. But we'll see, maybe in 1+ year switching to OpenStreetMap will again grant some more life for the device and make a person happy.
@GarminNüvi - Thank you VERY MUCH, you rock!