Multiple maps on Garmin: how?

I have one map of the UK (gmapsupp) and another of France (gmapsupp1).

The UK one is stored in the Garmin Nuvi memory and works fine. The France one is on an SD card in a directory called Garmin and doesn’t appear to be working.

Is there something special I need to do to get both to work (I am going on holiday in France shortly)

I think the France map should be named gmapsupp.img as well (but that depends on what version of nüvi you have).
You can check it with javawa device manager:

Thank you!

That worked perfectly. Great utility.:smiley: