I used a Gateway card a long time ago. Now I wanted to follow Plais A9LH Guide, but there are some errors i got frequently (Can't downgrade to 2.1, decrypt9 won't recognize my emuNand). I heard that Gateway is sometimes the cause. I created my emuNand using Gateway and I backed my Nand up using Gateway. Does anyone know how to fix these issues/ remove Gateways code from the 3ds