This is quite a complicated situation. I've bought a new 3ds after my old one's charging port and top display broke. The SD card I used for it has lumahacks on it. When inserted into the console, it works fine. However powering on the console with no/any other SD card causes the message "stack dump OFFFFFFD8 etc." To appear. This is where it gets hard to follow, but when inserted into the new 3ds I have bought, none of the save data is acknowledged. When on animal crossing, it comes up with "new save file" instead of my character's names, yet my data is still there when inserted into the old 3ds. The new 3ds turns on with the SD card inserted, but now when I remove it, the "failed to apply 1 firm Patch" message appears. Does anyone have any idea how to fix this? It's very confusing, as it doesn't seem that my data is actually gone.