Hello everyone! Well, here's the story. A while ago, I've accidentally upgraded my DSi to v.1.4.3E. I was looking for a solution, and found this TTi143UPGRADE.nds file. So, I loaded my DSTTi on my DS Lite, started the nds file and pressed the X and Y buttons, but the upgrade stopped at 0.78% for a long time. I thought something was wrong and after a while I turned the power of my DS Lite off, but now both my DS Lite and DSi don't recognize my DSTTi. It simply says 'There is no DS Card inserted'. Is there any way to fix this? I've tried formatting the SD card, using a different SD card and so on... but nothing seems to work. Thank you very much in advance!!