Hacking linking to fake NNID without network connection

[FunThomas]

Hello,
is there a guide how to setup a fake NNID without network connection?
i Know https://github.com/Povstalez/Kefir-Updater/releases should do the job but it needs a wifi connection

 

[designgears]

There is a thread for manually doing it.

https://gbatemp.net/threads/any-way-to-edit-profile-and-fake-link-account.526255/