I currently have a N3DS with a low firmware revision, and would like to keep it that way in case future flashcart updates require such firmware. But I need to access the eShop to redownload some titles I had on my old 3DS, which was stolen. The eShop wants me to update the console before it will let me access anything. Is there some way to block it from checking the update, but still be able to download my software?