See OSM gmapsupp.img in Basecamp?

I downloaded an OSM gmapsupp.img file (~3.6 GB), have it on an SD card, see it on my Edge 705 and also in BC when the 705 is connected. How do I get it so I can see that map and layout rides, etc. when the 705 is not connected?

It took a loooonnngggg time for BC to read the map off the 705 the first time I tried (~1 hr), but now it seems it's cached in BC so it shows up immediately once I connect the 705.

Even more info: I have authentic Garmin CN SD cards for US and EU that won't show up in BC when installed in the 705. Garmin sent me new ones, which do show up, but those sometimes go away mid ride and I have to cycle the power on the 705 to get them back....????

0 looigi over 12 years ago

.... I suggest trying some other OSM based maps, eg from this website: http://garmin.openstreetmap.nl/
Those maps include an installer for BaseCamp...

That was the site I got the maps from previously that first exhibited the problem. Using a OSM and navigating a GPX file with an Edge 705 doesn't seem to run into these roadblocks. It's only in basecamp that I see them when trying to create a track.

FWIW, the 705 takes about 1/2 the time to calculate a saved ride (gpx track) using the OSM maps compared to using CN maps.