Hi!I have found a fix for the little pink dots that appear when you downgrade(I used SafeSysUpdater to downgrade to 9.2.0-20U on n3ds).In my case, all files were ok, I pressed y and some pink dots appeared on my screen in a vertical line in my bottom left corner.I tried to downgrade for 1-2 hours, then I watched some tutorials about downgrading, and they said something about ftBrony.I opened up Homebrew Laincher with menuhax, and opened ftBroony, spammed B untill it exits, and entered SafeSysUpdater. I pressed Y and everything went fine.Hope this works for you!
If it doesn't turn on after downgrading, eject the sd card from the console and boot the console normaly.I recomend doing a sd card backup and format it (FAT32).
If it doesn't turn on after downgrading, eject the sd card from the console and boot the console normaly.I recomend doing a sd card backup and format it (FAT32).