Hello guys! I just got my sky3ds and tried my 3 private headers to play Mario Kart 7 online. But it never works??? I even tried a header from one of my friend's Mario Kart 7 itself. It still doesn't work. I used Sky Army Knife, Gateway ROM Patcher and NoBanNoSky- nothing! Just that lame stupid f****** error 002-0123. Any suggesstions?