I'm getting a new 3DS for my bday. I currently use an acekard 2i on my DSi. Can I just start using my acekard 2i from my DSi on my soon-to-be-new 3DS? Or do I need to flash the acekard? Can I go back and forth btw handhelds with the same acekard 2i, or do I need to flash each time I go back and forth? Thanks.