I'm sorry if these are basic questions, but it has been almost a decade since I last updated my Garmin GPS and it looks like much has changed!

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I downloaded the CN North America NT 2019.11 gmapsupp.img and tried several guides involving cGPSmapper, GMapTool, or MapSetToolKit to load the image into Basecamp, MapSource, or MapInstall so that I could do a partial map load (only load US states) to the devices, as my nuvi 3750 (my newest Garmin GPS) didn't have 2.68GB free. Since I couldn't get any to work after several hours, I caved and stuck the IMG on a microSD card. It works, but is not ideal, since the 16GB card must be inserted for the GPS to be functional. Is there any way to accomplish what I tried to do? I remember being able to select which parts of the map to load for a partial load the last time I updated, but don't have the guide I followed all those years ago. After not using the GPS in over 5 years, I finally dug it out and need to update it for a longer road trip this week because my phone overheats/locks/doesn't work properly when using the GPS for just 45 minutes. However, I have been unable to find US-specific and Canada-specific images for 2019.11.

For older map versions, I've come across 3D, JCV, SID, SQLite, ASR, and DEM releases and variations thereof, but not for 2019.11. It sounds like 3D = 3D view of buildings, JCV = junction view, SQLite = related to traffic, and ASR = voice recognition/voice commands, though I can't figure out what SID or DEM are. What happens if the 3D/JCV/SQLite versions differs from the version of gmapsupp.img?

Third, is it common to find extras online to load onto nuvis, like general POIs? As far as North American POIs go, I saw the .GPI of safety cameras posted on the forum, but have not found much else. I thought that that would include things like local landmarks, businesses, gas stations, stores, and points like that.

If I have a 16GB card, what else can/should I load that would be useful?

Thank you!

bmnota Reviewed by bmnota on 28th May 2018. I tried updating my nuvi after many years for a trip this week. My noobish questions are within. I'm sorry if these are basic questions, but it has been almost a decade since I last updated my Garmin GPS and it looks like much has changed! I downloaded the CN North America NT 2019.11 gmapsupp.img and tried several guides involving cGPSmapper, GMapTool, or MapSetToolKit to load the image into Basecamp, MapSource, or MapInstall so that I could do a partial map load (only load US states) to the devices, as my nuvi 3750 (my newest Garmin GPS) didn't have 2.68GB free. Since I couldn't get Rating: 5