smealum gave some tips on what game you will need to use the SSSpwn exploit that will allow homebrew firmware on any 4.0-8.1 3DS.
1. The game is available on this site: https://www.ebgames.com.au/3ds
https://twitter.com/smealum/status/504511090626027521
2. "The game is old and cheap, i got 4...