i was messing around with other flashcart´s firmwares on my 3ds. The sd card previously had emunand installed. I removed it formatting with easus file master. everything was working normally, but then, when i put my original flashcart firmware back, i was suddenly loading emunand each time GW mode loaded. I reformatted, but now, ds exploit will never load. stuck on bars each time. The problem IS with the sd card , because my other sd card works normally. How do u properly remove emunand from an sd card?