Hi, I am pretty much an idiot. I upgraded my sd card from 8gb to 16gb in the past before I had cfw on my 3ds, and all I had to do was copy my files straight from card to card on my computer, so I assumed for some reason that it would work the same way for cfw... I realised I made a huge mistake when towards the end of the data transfer windows had a problem saying that files could not be written to the new card because they were corrupted. I also super messed up as well by using "cut" instead of "copy" on the files from my original sd card so it is blank now. All the files from the original sd card are on my computer but I can't fully write them onto a new card as towards the end of the process (90% of the way through) there are a few files that are apparently corrupted and won't copy. These files are from the "Nintendo 3ds" folder, but I'm not sure exactly which files are causing the issue. Now being the idiot I am, I thought that since everything except the "Nintendo 3DS" folder is intact, I should just delete the Nintendo 3DS folder and the system would just create a new one right? Bad idea apparently, because now I can't install cia files at all. I keep getting this error whenever I try and install any games Failed to install CIA File. Result Code: 0xD9004586 Level: Permanent (27) Summary: Wrong Argument (8) Module: FS (17) Desc: <unknown> (390) I appear to still have luma/hourglass9 etc in working order and I can install the cias for the luma updater, homebrew channel, CIAngel and FBI, but no games will install. CIAngel is unable to install any games either. I'm a real noob at thie 3ds cfw stuff, but from what I gather there may be something called emuNAND that I'm probably missing on my new sd card? I'm not exactly sure what the reason is that you can't just copy files from one sd card to another. Am I screwed, or is there a way to fix this? I have no idea what I can do to fix my 3ds Any help would be so greatly appreciated.