So my wife just gave me a 3DS that she won in a raffle years ago. She's no gamer so it is unused. I fired it up and I'm pleased to see that it has 2.1 firmware! Gateway 3DS will work okay! Some small queries though. Should I update this to 4.5, or leave it at 2.1? I assume with emuNAND that there's no real need to update the base firmware, right? Should the current system be backed up in some way, or is this relevant? Sorry if these are daft questions. I never expected to ever get hold of such a low firmware console so I've never used 3DS homebrew.