Ok, guys, I've searched everywhere and got no solution at all. I've installed rxTools 3.0 Nightly, and got emuNAND with the latest firmware. I have an old 3DS USA, and switched emuNAND version to EUR. I've installed a lot of CIA games, like Zelda Triforce Heroes and Pokémon Super Mystery Dungeon, that are running smoothly. However, although the installation seemed to be successful, whenever I try to launch Super Smash Bros, I get the Nintendo 3DS screen followed by a plain Black Screen, that freezes the console, so that I have to force it to power off. Unlike many other people, I have no error message whatsoever. At first, I thought the problem could be the game file. I've downloaded many Super Smash CIA files, from many sources. I've tried to convert .3ds files to .cia files. They all had the same result. I've decided to format the console in order to fully separate emuNAND, as many people told me to do. It didn't work at all. I've tried other rxTools versions - 2.5, 2.6... Same problem. I got back to the 3.0 Nightly. Nothing seems to make Super Smash work. Any ideas?