Hi everybody.
I own an OREGON 450. I had a micro sd card of 2 G in it with two files for the maps of north america named :
gmapprom.img of 117 428 ko
gmapsupp.img of 1 458 336 ko
I downloaded a map with more details for Canada from Open Street Map wich was in a zip folder named "Canada Garmin Map 2014.10.29" when I opened this folder the name of the file inside has the same "gmapsupp.img" name file but was 1 047 776 ko. (I can't change the name of that file). There is only one file in the folder.
I put this new file (OSM), with the 2 other (old) files in a folder named GARMIN on a new micro sd card (16 G) because the previous one was too small (2 G). So now 3 maps are in that GARMIN folder. I have changed the name of my old gmpasupp.img file of 1.4 G for "gmapsupporiginal.img" because this file would permit me to change the name but the new one from OSM would not let me do it.
Before, the map on the screen of my GPS was a traditional Garmin type of map with the names of all the streets, etc.
Now, when I open my GPS, it goes directly on the OSM Canada. Even if I go in SETUP, MAPS, MAP INFO AND SELECTION and disable the OPEN STREET MAP and actived the GARMIN NORTH AMERICA, it still continue to show the OSM map on my GPS screen. Even so, the two different maps (OSM and GARMIN) appears in the list of maps available for selection.
Sometimes, I would like to have less details and would like to go back to my old Garmin map of north america.
My question, how can I have those maps seperatly and see only one at the time on my screen. I tried to rename the gmapsupp.img file comming from the OSM but it's lock.
I have put all those 3 maps in the same GARMIN FOLDER. Should I create a new folder. Or a second "Garmin" folder, or put the whole unzip folder (Canada Garmin map) in the Garmin folder of my new micro sd card.
Also, do I need to keep the "gmapprom.img" file on the sd card ?
What is the best way to install new maps of different regions on the same sd card ?
Thanks.