Hacking [Help] how to unban myself

[Emanuel4100]

so i got ban and i dont know how or why. but i saw a way to unban with a second 3ds without ban
and i only have one console , can someone tell me how i can unban with only one sonsole BTW i have
sysnand 11.3 luma + A9LH and decrypt9 (payload). and my error is 002-0102

 

[DoArt]

https://gbatemp.net/threads/all-3-methods-to-get-unbanned-from-recent-ban-wave.450679/