Long time lurker here but failing to find any related thread forced me to sign in and create this. I was one of the individuals who had that weird 'Metroid Demo' icon bug (Revision C-when I bought this several months ago it started with the Dorasu icon). For a while I ignored the problem while r4ids.cn worked on fixing it and updated to the most current 3DS firmware (4.5.10-U, or something like that) to get the Fire Emblem: Awakening demo (I took out the r4i and placed a genuine 3DS game I've purchased before I upgraded the firmware). A few days ago, r4ids.cn did finally release a patch to fix the bug so using my NDS lite I placed both patches into it to upgrade the firmware. The NDSL patch failed to work but the NDSi patch worked which caused the icon to change from the Metroid demo to a different Dorasu icon than the one the card originally came with (it successfully formatted). After all of that, the card works as usual on the NDS Lite with the new icon but now it no longer works on the 3DS XL (I get that black screen telling me an error has occurred and I should check the manual and hold the power button to turn the 3DS XL off). The Dorasu icon does show when I turn the 3DS on and when I select it to play it it brings me to that black error screen. Any one know what the problem is? Should I try to format my micro SDHC card? Is the card dead or useless on the 3DS? I did upgrade Wood R4 about a week ago but never used the RTS tool which requires a certain format on the micro SDHC (8 KB) but that doesn't seem to effect that I can use it normally on the NDS Lite.