Hi, I just purchased a secondhand 5.5.1 Wii U, but unfortunately their NNID is still attached to the system. The only way to get rid of it seems to be to delete all content and settings, but it requires an internet connection to complete. I think this is absolutely ridiculous!
Is there any way to do this without the system updating the firmware? Or will it not update the firmware?
Is there any way to do this without the system updating the firmware? Or will it not update the firmware?