Nissan Leaf - SD card

How do I copy the contents of a Nissan Leaf card? It is both bootable. The computer does not see it! How to open it, and also to make its image?
Head Unit Clarion QY-7210.
How to attach a photo?

Which map did you use? I'm trying to get my content running

4 years have passed since the creation of this theme! The question has been solved!