I just got an M3i Zero. I have two MicroSD cards. One is 4 GB. The other is 8 GB. I've copied F_CORE.DAT and the SYSTEM folder to both, then put the SD card into the M3i, attached the flash cable, and plugged it in. With the 4GB, I get absolutely nothing, not even a solid LED. If I remove the SD card, the LED comes on. If I insert it, it goes off. With the 8GB, I get a solid LED, and that's it. It doesn't start flashing. Any idea what I'm doing wrong? EDIT: I've formatted the flash cards. That didn't help. I've tried repeating the process multiple times.