There is nothing that will "unban" you with the switch.
Now and forever.
The certificate installed on each console is unique, and only Nintendo can create these certificates, and anyway creating a new certificate is useless as these needs to be registered on Nintendo's servers.
Also using a certificate that is not from your console will also make that other certificate banned, that means another console get banned.
A banned Switch will stay banned forever.
Now and forever.
The certificate installed on each console is unique, and only Nintendo can create these certificates, and anyway creating a new certificate is useless as these needs to be registered on Nintendo's servers.
Also using a certificate that is not from your console will also make that other certificate banned, that means another console get banned.
A banned Switch will stay banned forever.