Well I'm back. I can't continue the "finalizing setup", because everytime I try to open "download play", the 3ds freezes. Actually everytime I try to open anything in the home screen the 3ds freezes. I restored my backup, but the problem seems to follow.
By the way, I got the default apps, using Godmode9, with the "Remove exdata", but nothing works.
I would like to clean install everything, but I don't have a flashcard (I bought last week, its still on its way). Is it possible, without a flashcard?
What if I update my 3ds? But I can't access the settings.