I have been using M3 Sakura v1.45 + TouchPod v4.7d for a while with out a problem with my NDSi + 8GB Kingston card. Yesterday I tried to upgrade to M3 Sakura v1.45X 5th Edition (M21) + TouchPod v4.7fX (M63), downloaded from this website. Upon booting I chose Sakura on the first screen, and the clicked "no not show this screen again" on the next screen. When I clicked OK the top screen turned black, and everything froze. When I booted it up again (i.e. turned the DSi off and on again) I experienced the same thing as soon as the disk checker completed its operation. Things that I tried so far: - Low level formatting to the SD card, then re-installing the System folder again. Result as above.. - Formatting and re-installing v1.47d again - everything works fine. Any idea to to get around this?