First, i'm new to 3DS, so I'm not aware of a lot (for the moment)
I have a 2DS, installed a CFW, so it is hacked (latest luma). I decided to install a 3DS game from godmode, it was in *.3DS format.
The pb is during this procedure, it filled my 4 GB card to 0 space. Also, when I rebooted my 2DS...