Hacking NNID on rednand after format

[Minasodrom]

hi guys, i know unlinking nands is rather pointless on the wii u since usb device id is not redirected and its not like shared 3ds sd card,
but i wanted to know if when i format sysnand and my nnid gets unlinked if i can still login from rednand. on 3ds it gets disconnected from the console after format, how is that on the wii u?

 

[roots]

when i made my rednand i had connect(on rednand) to the e-shop(same nnid on sysnand),after that i came back to sysnand for format and unlinking nands.
after format was done i put my nnid on the sysnand to redownload my legit games from e-shop.
now the interesting thing : i can use the same nnid in rednand & sysnand, and the wiiu don't ask me to format my usb drive when i switch rednand/sysnand!

 

[Minasodrom]

when i made my rednand i had connect(on rednand) to the e-shop(same nnid on sysnand),after that i came back to sysnand for format and unlinking nands.
after format was done i put my nnid on the sysnand to redownload my legit games from e-shop.
now the interesting thing : i can use the same nnid in rednand & sysnand, and the wiiu don't ask me to format my usb drive when i switch rednand/sysnand!

thx for he quick reply
so you were connected and then did not have to login again on rednand?

 

[roots]

yes because when you make rednand it s a copy of your sysnand so same users are in rednand!
if you want to make your rednand go ahead because to format your sysnand you need a connection(and it seems nintendo is preparing an update...)

 

[Minasodrom]

yes because when you make rednand it s a copy of your sysnand so same users are in rednand!
if you want to make your rednand go ahead because to format your sysnand you need a connection(and it seems nintendo is preparing an update...)

thank you!! its just weird cause on for example 3ds the connection is needed during format so the nnid is disconnected from your nand on nintendos servers (which then also doesnt work on emunand that is still logged in anymore). either that does not happen on the wii u or the identifier, that links the nnid to the nand is saved on a part of internal storage, that is not redirected.
who knows..