Thank you, I will try your tutorial as soon as I get home.
Could you help me with my other questions?
How would I do to start from scratch with the new SD? Can I just copy the contents of my current SD and continue?
Is it safe to reboot if pasta or emunand are not launching?
Yesterday, I downgraded my n3ds to 9.2 with safesysupdater and then started to follow this tutorial (great work btw).
On my first try, I ran pasta and installed hbl and FBI. Then I tried running emunand9, but froze (black screen, no loading), so I rebooted (after waiting some minutes).
Second...
Eur n3ds, 10.3.28, menuhax.
First try: red (white?) pixels on top screen, rebooted.
Second try: successful downgrade.
Thank you, @cpasjuste, I was very afraid I would brick, great work.
Is it possible to install in a bigger SD and then copy the games to a smaller one (smaller, but still with enough space for just the games, not the .cia, of course)?