That's impossibleThink I’ll have to leave on 4.1, other way is we need to reproduce Nintendo’s server saying fw is up to date.
if you got supernag for 8.x just sell the console and buy new from a shop. you'll get a <8.0 for sure. then you can wait
otherwise update with cart to a version that removes supernag.
There is no way to remove supernag except updating









