How to admin multiple maps in nuvi 255w

[hcch]

The base map is the North America 2011.30

And just installed a local Mexico Atlas into the removable media. But can not deselect the Garmin mapset.

Please help

Thanks

[catymag]

How are the two maps named? CNNAM is not the basemap, should be your preloaded map and named gmapprom.img-
You cant deselect the basemap-

[Kanopus]

Actually when you remove basemap gmapbmap.img from your nuvi, than you won't be able to deselect all maps.

[hcch]

so I need to rename it? in order to use the other mapset?

[catymag]

read this post, it's ok for your nuvi too
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and
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