. Distributing or downloading these files from third-party websites is considered copyright infringement. Homebrew your 3DS : You must have custom firmware (like Luma3DS) installed. Use GodMode9 : This is a powerful file browser tool for the 3DS. Export Keys

Which of these would you like?

After placing aes_keys.txt , launch any encrypted 3DS game. If it loads without asking for keys, success! You can also check in Citra’s log:

Without this file, Citra can load the emulator menu, but the moment you try to play a game, it sees encrypted data, doesn't know the password, and crashes or freezes.