http://filetrip.net/others-downloads/other-systems/download-gateway-3ds-manual-and-set-up-files-10-10-f32249.html
I used donkey kong country to update to 4.5 and it worked fine.
Good to know. I currently have firmware 4.4 and thought I had to buy a cartridge to get 4.5 on to it. Now I know I can just load a rom that requires 4.5 and it will update my system. Saved myself some money. Thanks.
@Xdqwerty, to answer your question, they're a fusion Brit-pop/J-pop/electronic band with a woman vocalist. Flamingo is hands down their best known song but they've got a ton of other really good songs