Thread: How to install multiple maps on Garmin the easy way

Thanks i70 for sharing your experience. Thanks for your comments but I am an "OLD DONKEY" and I have spent many nights in front of my PC to "juggle" with these devil's things (PCs I mean - for GPS only 3+1 days) Last week a very good friend of mine requested me to load his TOMTOM w/ the map of Argentina - he was going to Argentina in 3 days and asked my help. I was really pressed!!! Though I made a back up of his files, I patched the backup to see what is going on and then his unit: result? Catastrophe!! I messed up his unit -not booting -NOTHING!!! The back-up was messed BEFORE the unit. I spent several hours to Upgrade his system files to a newer version and then managed to load the Argentina map at 04:30 am. He left the next afternoon PHEW!!! So I am a little educated on GPS units from last week on a TomTOM thing which I dealt with for my first time!! I have screwed up also another 455T (I am experienced in catastrophes) so before manipulating all these units (for myself and 3 other friends I would like to get myself more knowledgeable on the subject but unfortunately the experts have not answered yet (it is Sunday eh!)

Thanks for your info but I will not count much on it as it comes from a mobile phone and not a nuvi (GPS unit) - I am not sure there is "full" compatibility...between them - let the more experienced guys help us - and I am a little scared after having meshed up two units the last month...

At least could you please tell me WHERE have you loaded these maps: gmapbmap, gmapprom and gmapprom1 into your unit memory and gmapsupp together w/gmpsup2 in external SD-Card?

By the way about "conflicts" with overlapping maps - What experts say (see below) ...

Originally Posted by catymag

You cant have enabled routable maps that cover the same area and that overlap, this can be your problem-
The basemap must be apart and cant be deselected and must be named gmapbmap.img if you want it can work properly.

....seems to me incorrect. I have loaded the internal memory of the NUVI 370 (the older and most limited of all units) with CN USA NT map and CN EUrope NT(contains GReece w/Latin Chars) and a detailed GR map (w/Latin Chars also - because NUVI 370 has not greek chars so maps w/greek chars appear as "chinese chars" instead -hahaha) on the SD memory. Having enabled ONLY the 2 OVERLAPPING maps (CN EU NT in internal memory and GR-map in external SD-card) I can Search and Route (this is done with the detailed GR map on ext SD-memory - CONFIRMED!!!) without problems or other conflicts. Not to mention that when I enabled only one of them Searching and Routing was possible w/o any problem AT ALL (only the EU map routes "MY CAR" through a pedestrian road -because the map is not updated- close to my house in Athens and I use this to identify which of the 2 maps is used for searching+routing when both are enabled, SMART EH?!! So when both are used the pedestrian way is shown as pedestrian way i.e. CONFIRMED that the GR-map on the SD-card is used/takes PRIORITY !!!! This is called ENGINEERING - hahaha-lol

Thanks anyway- best regards - George (aGreekInParis)

*** Sorry to bother the forum w/personal stuff - You may delete this post with my full permission - it is useless after all - George ***
After I put the last paragraph I think it is useful to leave the post Mr Admin - thanks!!! George

PS: George is searching for the experts - where are they? they went to the church??? Good for them!!! - just joking guys - sorry I am REALLY very tired