So I got my M3i like last week. My Dsi is version 1.3U. It worked when I first started using it. Except, every time I would turn off the system, the next time I played the M3i, I got the error, the one you usually get when you play it on 1.4. So I had to re-format the card each time. But lik 2 days ago, I reformatted it, I still got the error, so like an idiot, I decided I should re-flash it. I re-flashed it, and the light never stopped blinking. So I left it in for like an hour, and forgot it was there, restarted my computer. The light turned off, I pulled it out, and tried it again in the DSi. This time, rather than getting an error, it just wouldn't read the M3i. I even tried using a new mini SD. Do I have to get a new one M3i, or can someone help me?