Care to point out the part in the guide that even told you to use minipasta?
Because... literally no part of Plailect's Guide, not a single one, tells you to touch minipasta.
The problem here is you didn't follow clear, concise, and obvious instructions.
And now you're suffering for it.
With that said, as other's here mentioned you need to DSiWare Downgrade using another hacked 3DS and 5 dollars eShop credit or get a hardmod done to your console.
We're not telling you this to piss you off. We're telling you this because it's the actual only way out of this mess you got yourself into.
You can "sit there at your computer trying all day until your 3DS is fixed" all you want, but that isn't going to accomplish anything.
IDK about that, sure sounds like he thinks this'll fix it.
People are just getting frustrated with this guy because he's being vulgar and rude when everything that's gone wrong is his fault and he's not really listening to the people telling him his only options because he doesn't like either option. I can't blame him for being mad, but ya can't act a fool and expect people to not point and laugh.