Thread: Garmin City Navigator North America NT 2014.20

Originally Posted by dasilvarsa

To Remove Mexico you need to download the full Mapsource (PC) installation from post #1
You can then use Mapinstall to Create a custom gmapsupp.img without Mexico.

I downloaded the files but when I try to unzip them it asks for a password.

I've downloaded the files in post #1 and now I have to unlock them with PGFT? Which files do I need to unlock? Sorry for all the questions but this is all new to me.

[Only registered and activated users can see links. ]

[Only registered and activated users can see links. ] I did it! [Only registered and activated users can see links. ]

The funny thing is that it was so easy. I spent hours and hours going thru the tutorials but they just send you 20 directions. If anything it made the process alot harder for me.
I was just messing around with basecamp after I got the full map installed, thanks Neil. I clicked on the maps-install maps tab but I couldnt send the map to my device because it's an in car unit but I had my thumb drive connected to the pc and that came up as a device. Next thing you know MapInstall pops up and I figured out how to edit the map to a smaller size and installed it on the thumb drive. Plugged the thumb drive into my laptop and hooked that up to the in car unit, uploaded the new map and an hour later I was good to go. If I didnt have that thumb drive connected by chance I would still be scratching my head. Just want to say thanks again to everyone that helped, much appreciated.

I have downloaded the mapsource version and able to unlock and view the detailed maps in mapsource.
How do I create a gmapsupp.img from this?

Originally Posted by Neil

MapSource is no longer supported by Garmin and is not recommended for creating CNNT images, particularly large ones. The recommended programs to use are BaseCamp & MapInstall.

I guess i havne't been reading enough of the forums. Is there a general rule for the size before there might be problems in the img and what kinds of problems? The images i make are generally 2-4 Gigs. I havne't noticed anything unusual other than the same problems i've seen with their maps for many years..

Originally Posted by Neil

@Skylinestar
Although a very nice and user-friendly program to use, MapSource is no longer supported by Garmin and is not recommended for creating CNNT images, particularly large ones. The recommended programs to use are BaseCamp & MapInstall. MS compiles img files somewhat differently and because it may create tiny errors in the resultant image, it's just not suitable to use with modern map files. Go to the [Only registered and activated users can see links. ] and you'll find plenty of links to help you, even with MS.

I have unlocked the map. In Mapsource Manage Map Products, the map is now shown as "Not Lockable".
I managed to create the gmapsupp.img using mapsource and load it to my SD card and fit it into my Garmin Nuvi 255W. Upon Nuvi startup, I got the message "Can't Unlock Maps" Is the img file locked or unlocked?