Darn it! And here I was being stupid and trusting infinitydream about the 1 game per SD card rumor. /sHear that guys :
The bresilian reseller (Playtronics) said us on the 3DS chatango (http://gateway3ds.chatango.com/) the update will be release on the 2/1/15 and say it works with an exploit of the Mii Creator (a QR Code, like Ninjhax)