Thu Jul 23, 2026 3:39 am
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Copy unpacked City_Navigator_North_America_NT_2027_20.gmap folder to C:\ProgramData\Garmin\Maps
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Fri Jul 24, 2026 8:17 pm
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Fri Jul 24, 2026 10:12 pm
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Fri Jul 24, 2026 10:41 pm
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Sat Jul 25, 2026 4:25 pm
Is there anything that can be done to run the full north america on the nuvi 660? It has a 2gb limit I tried the canada&norder states on a sd card since it dont fit on internal storage, it only gives me 3 digit street names but the map shows so it doesn't work for anything no addresses. Am i missing something?? I removed the original garmin map from a long time ago is there a way to restore it if i cant make it work?
Last edited by
GarminNuvi on Sat Jul 25, 2026 6:39 pm, edited 1 time in total.
Reason: removed quote
Sat Jul 25, 2026 6:59 pm
@prosown12
Try using this test map from the last known version without addressing issues on some older devices.
new-maps/garmin-city-navigator-north-america-2022-fid-9362-t22563-30.html#p202479
Wed Sep 02, 2026 6:02 pm
prosown12 wrote:Is there anything that can be done to run the full north america on the nuvi 660? It has a 2gb limit I tried the canada&norder states on a sd card since it dont fit on internal storage, it only gives me 3 digit street names but the map shows so it doesn't work for anything no addresses. Am i missing something?? I removed the original garmin map from a long time ago is there a way to restore it if i cant make it work?
I think you can put a SD card in the 660...up to 4gb.
Wed Sep 02, 2026 7:06 pm
jeffjs wrote: I think you can put a SD card in the 660...up to 4gb.
prosown12 has a device that can only read .img files up to 2GB ,it can use SD cards up to 32GB.
[Please Register or Login to download file] prosown12 also has a legacy device that has an issue with street address displaying incorrectly since the 2022 version.
Thu Sep 17, 2026 4:38 am
I was hoping to get the .img files to put the maps on the device. This just seems to be the map files for Basecamp which Garmin lets you download directly anyway. Are the device files available? I have a Montana 700i.
Edit :
My issue ending up being lack of storage space as maps have grown over the years. I removed some topo maps and was able to reinstall the City Navigator Maps in Garmin Express. I now have turn by turn navigation again. Garmin phone support pointed me towards the solution. The online support forum gave bad advice.
Last edited by
GarminNuvi on Sat Oct 10, 2026 1:17 am, edited 1 time in total.
Reason: combined posts a month apart
Thu Sep 17, 2026 4:56 am
Moto909 wrote:Are the device files available? I have a Montana 700i.
Welcome to the forum.
The first 2 files
US 2027.20 (gmapsupp).rar - 2.6 GB
Canada & Mexico 2027.20 (D9644140A).rar - 908.1 MB
But your device
cannot use these unlocked maps
Thu Sep 17, 2026 8:18 pm
I would apreciate a little help, since this is my first time dealing with maps. I read all the topics around Nort America map updates.
My device is DRIVESMART 55 MT-S. I am from Europe, european version. Using Windows PC.
I would need these maps for my Canadian trip.
So I copyed "for PC" files around the folders (the usual path Garmin/maps was not there) until they were visible in Base Camp and Mapinstall showed the maps as available to load on card. I bought a new 32GB microSD and formated to fat32.
Whatever I do, when I plug the maps in device, it reboots, but then says that maps "are broken". Mapinstall shows no problems, finishes transfer as sucsessful.
I also tried downloading the gmapsupp file for Canada and after unraring copied directly to Garmin folder on microsd card. Same thing, the device reboots and after reboot says "maps are broken, unable to use".
What am I doing wrong? Thank you for your help.
Fri Sep 18, 2026 3:30 am
LostCase wrote:he device reboots and after reboot says "maps are broken, unable to use".
Welcome to the forum.
"Maps are Corrupt and Cannot be Used. "Your device
cannot be made to use these unlocked maps
Fri Sep 18, 2026 6:55 pm
Thank you!
Oh... so I am not doing anything wrong, but there is just no way to use this device in Canada? That´s a bummer, wish I knew that when I bought it. It was nowhere written that it is only Europe. And Garmin express gives me no option to buy original maps for US/CA, only shows option to buy speed cameras. Would rather even pay more for something else if I knew this before.

Thank you, I didn´t find this post.
Fri Sep 18, 2026 8:07 pm
LostCase wrote:And Garmin express gives me no option to buy original maps for US/CA,
You buy from Garmin's website, but it is a one time download/SD card with NO updates and no additional features 109.99€
[Please Register or Login to download file] I would just buy a used North American version device from as low as 33.99€ like the 1 below and keep it for the next trip or sell it when my trip is over.
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Sat Sep 19, 2026 9:08 pm
Thank you very much for all the help and work!
I am skipping the one time download, no thank you Garmin- I just don´t trust them, since from my device it doesn´t give it as an option + too expensive for no updates.
I will try with google maps for begiing, if it will prove problematic, for around 150€ I can buy a whole new device in Canada with lifetime updates and just keep it for next time or sell/give it to someone.
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