I believe the correct would be that "if you update from 2.1 new 3ds to the version BELOW 6.x, you will brick"
So what you can do is restore the NAND with a hardmod
https://gbatemp.net/threads/list-of-hardmod-installers-by-region.414224/
Brazil: @mvmiranda and @V3N0MBR
If I am not mistaken the game path was not yet implemented at least in version 0.2.
The + button downloads the game covers, i tested it on mine and he started to download but I do not have internet connection set up so I do not know if it really works.