I was on 4.5 until... (i'll spare you) now my (old) 3DS XL is at 9.9!!! I used to be able to stick in the blue card and boot up but now the card won't load. I refreshed all the cards to the new Gateway Ultra 3.3 but I'm not sure what to do as the instructions are not clear anymore. Can I downgrade the firmware? Any help would be appreciated!