Quote Originally Posted by Neil View Post
Yes, solved is good. Telling us what you'd done to solve [or hadn't done right before] is better ......? I know Rarotonga works.
After trying your suggestions numerous times, I took your advice and did a "Search" with Google. I came across another web-site, were a long way down in the thread I came across the solution.
Here's the Post;
"My Observations
alandb wrote:
"I believe the map naming flexibility on the newer units applies whether the map is placed in internal memory or micro SD card, as long as you put the file in the Map folder. I don't have one of these newer units to test with, so someone please correct me if this is wrong."

I tested your Map folder statement on my 2460LMT and it seems incorrect. A MAP folder on the Nuvi itself WILL NOT BE RECOGNIZED (at least on my 2460).

I created a folder named "Map" in the Garmin folder and copied a map named gmapsupp.img in it.
The map was not recognized.

I then moved the Map folder(with map) into the system folder, the 2460 did not recognize it.

Next I moved ONLY the gmapsupp.img file into the system folder, it too was not recognized.
Then I renamed the gmapsupp.img to gmapprom1.img and moved it from the System\Map folder into the System folder, then deleted the empty Map folder.
The map was now recognized. It appears at least on the 2460 model any additional maps added to the unit itself must be named gmapprom1.img.

From my experiment on the 2460, I have established a Map folder on the Nuvi will NOT be recognized.

Using that same map I copied it to my SD card to the folder Garmin\Map. I renamed the map file "CRAP.img"
and the map WAS recognized.

So it appears that the Map folder MUST be on the SD card and you can name the map anything you want, however, on the Nuvi itself added maps must be named gmapprom1.img.

I can't say this holds true for the 1XXX series since I don't own one."

First you change the Folder options on your computer. [Only registered and activated users can see links. ]

Then, you adjust the MTP settings to Mass Storage, on your device. [Only registered and activated users can see links. ]

You then place your .img file in the "hidden" System folder, and rename it to gmapprom.img, as there is already a gmapprom.img file in that folder you can rename it and add a "1" to it for example; gmapprom1.img.
As my file is only 12MB, it didn't take up much space.
If your .img file is very large you can place it on a SD card, you can call it what you like as long as it's a .img file and placed in a folder called Map, ie SD:Garmin/Map, or you can remove the original "gmapprom.img" file and save it on your computer, and add yours.
You can add as many .img files to the system folder as long as they are renamed, just add a number to "gmapprom.img."

I hope you understand this, if not feel free to ask for help.