Just updated Joanne Arcay’s Garmin C340. Actually I already updated this to the 2010 map but she told me that she couldn’t select select a destination state. I tried to just reboot and reset the device but it did not work so I had to do a reinstall of the map.
With the method I use I was able to fit all the 2010 maps on the device itself without using a SD card.
I got help from this blogs.