I just put the jap version of pokemon platinum onto my r4. However, whenever i try to play it, the game just shows this blue screen with some jap words (which i can't read). I suspect that it might be something built into the game that won't allow it to be played on an r4 but im not sure. I did trim the game, so that might have been it as well. Anyways, let me know if this has happened to you and/or if you have any solutions. edit - solved, just needed to update my firmware.