Okay thanks for clarification. My device already came with latest firmware so probably it has 5.01 basemap.
So far i found no difference for detail level of Los Angeles at least downtown.
But its good to have this map installed if i want to turn off DEM for world view its faster to enable this map than disable DEM device settings,
And then if i zoom on region i need i can see detailed DEM data from dedicated TOPO product.
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