I have an M3i zero, which worked fine for a few months. (I got it last year.) However, eventually, there was some sort of issue with the firmware loading. It would show the Danny Phantom logo and all, but when I picked it, I'd just get a blank screen 9/10 times. I figured I'd just reinstall the firmware and see if that fixed it. Unfortunately, that didn't do it. When I attempted to reinstall the firmware, the red LED would just blink once and then do nothing. I got a new SD card and everything and still no dice. I left it alone for a few months, since it was just a worthless piece of plastic then, but I just happened to notice that a new firmware was out. I just downloaded it and put it on the SD card, but now, I don't even get a single blinking light on my cart. Could something be wrong with my cart? Or even the cord? I doubt its the LED.