I have an r4i-sdhc 3ds flash card that I'm using on my dsi . And I cannot get pokemon black to work on it no matter what I do. I have tried a clean ROM, and patched ROMs, I have tried no cheats and with cheats. I have tried turning DMA off. I have tried using retrogamefan's firmware / ysmenu. None of these have helped. No matter what. Eventually. A few seconds to a few minutes into playing the game the game freezes entirely. How can I fix this?