I don't even know how it happened, but the exploit installed on my 3DS is now apparently missing. A Gateway screen doesn't even pop up when I hit the button, only going to the DS profile screen. I've checked my firmware version, it's 4.4-10u, so it should still be able to work. I've also tried reinstalling it via the blue card, which greeted me with an indefinite loading screen. Is there any work-around for this?