Ok so I've been trying to get a resolution or this the last several hours. I'm getting the 002-0123 error when I try to go to another town in animal crossing new leaf for the sky3ds. I understand that Animal crossing has a manufacture ID AE while my private header is C2. I tried changing the template to a regular template that hasn't been patched with my private header and tried to go online to see if that was the issue. I still got the error. I don't know what I am doing wrong, I've looked up how to change my header to match the games manufacture ID but I cannot figure it out. I can connect with Mario golf however which is a C2 card. So how could I alter my private header to match that of an AE card? Is that possible? I've heard people say it was successful for them but no one really gives a descriptive answer of what they did. I've downloaded gateway rom editor to try and figure it out with no luck. Can anyone help?