For Christmas, I traded my 3DS with my cousin 3DS and save a copy of the "Nintendo 3DS" folder from my 3DS and did a system transfer from his 3DS to my 3DS so his data are safe. However when I overwrite the "Nintendo 3DS" Folder in the SD card and try to play on his 3DS, I get corrupted exdata and my saves are basically unusable. With save managers like JK's Save Manager, is it possible to recover my save? The only data I really want is the Monster Hunter Generation save data but that save data is saved on the SD card instead of cartridge, thus unusable compare to data saved on the cartridge itself. I still have the entire "Nintendo 3DS" folder and the .sav and .app files in my computer. I don't care about Guild cards, Mii Plaza data and friend's list. I only care about the save data of Monster Hunter Generation. Any help would be appreciated.