This has also happened to me, and I've followed everything that you guys have said. The only problem is the 3DS still won't turn on so I can't run SafeB9SInstaller. Can anyone help?
I have the cart for Pokemon Moon, and when in freeShop if i tap on it it displays a 'delete' button. The main reason i want to know is i want to factory reset the cart, not just the game saves.
@Xdqwerty, Osu! Tatakae! Ouendan! is the Japanese version of the game, different settings/characters/songs but otherwise identical mechanics. I played that before I knew about Elite Beat Agents lol. Both fantastic games https://en.wikipedia.org/wiki/Osu!_Tatakae!_Ouendan