If you end up in the DS Classic Menu, press B again.Exit TWLMenu++ Settings by pressing B button.Follow this guide starting from To run games using your flashcard firmware.If you do not have a flashcard, you are done with this guide. cia file to your SD card rootĪ flashcard is something that goes in the game card slot, and contains a microSD card slot. Copy the roms folder to your SD card root.Copy the BOOT.NDS file to your SD card root.Copy the _nds folder to your SD card root.Download the latest TWiLightMenu-3DS.7z.