My M3i finally arrived, and I've done the steps of formatting the microSD, loading it with the F_Core.dat file, and inserting the USB power cable, but nothing seems to happen. The guide says no LED = no power or finished, but my USB ports should certainly have power, no exception. I haven't seen the LED once. Anyway, at first the flashcart wouldn't appear in either my DSi or my DS Lite, but now all I get is a blank icon and a blank description when I try to load the flashcart. Do I have a faulty unit, or am I doing something wrong?