So yesterday I bought my second 3DS, nothing big, an old one. It got RxTools together with FBI pre-installed. It also got a few games (which were installed with FBI, I suppose?). However, whenever I try to install a .cia file (doesn't matter which), I always get this message: Install failed! Could not install app. Raw Error: 0xc8e08001 Module: AM (0x20) Level: Status (0x19) Summary: Invalid argument (0x7) Description: Unknown description (0x1) Press Start to continue. Please, if you know anything that might be helpful, I would greatly appreciate it. But try to keep it as simple as possible, since I just got this 3DS and don't really have a clue what to do.