Problems updating the garmin gps
Basically instead of installing a whole new map, they installed just the parts that needed to be updated. So to answer your question, yes it is working in conjuction with part of your 2011 map to provide you the latest data that is available.
Now as far as the SD card goes, your unit should not have a problem reading the card.
Positive feedback and bonus are always appreciated. I want to be able to install the full map product to the GPS.
If this information was helpful, please click accept. I had figured out that it was using the 2011 map with the 2012 updates, but this is not what I want.
Since your unit is older you need to download the latest software update to allow your gps to read the sd card.
You can download the latest software using garmin webupdater which can be downloaded from here install and run the program and follow the on screen prompts to get your unit up to do.
If you prefer your maps free, you can use open source maps from Open Street Map.
A GPS device is only as good as its maps, so you want to make sure that you have the newest, most accurate map data available before you hit the road.
Search for problems updating the garmin gps:
Updating the maps on your GPS device used to be a complete pain in the butt.