I have purchased the map VSA001R to use with my GPSMAP 7215 (Serial number 3855340629) thourgh download to a SD Card. I have already downloaded the file to the SD card through the Garmin Express twice. I connect the SD card to the GPSMAP already turned on. The map is not displayed in the Plotter and no error message is shown. When using the SD card with the VSA001R map, I only see the built in map in the Plotter (US Costal 2012). When I connect the previous SD Card (with South America older map), it loads correctly. I don't know what I am missing to be sure the map works correctly. Any support is welcome.