Everything was working fine yesterday so I turned off the 3ds and went to sleep. I woke up and all of the sudden the sd card wouldn't load, won't read on pc, but I can read the files in Gmode9 perfectly fine. Anyone know whats up? I have all my data on this and dont wanna lose it, can somebody help me.
Insert the SD card into a computer's card slot reader. Ignore what Windows File Explorer tells you about being unable to read the card . Also ignore needing to reformat the card; don't reformat it.
Unless you have less than 1–2 GB of stuff, you will need to somehow acquire a pro version of
one of these data recovery software. If you have no qualms doing so, surf the Internet with black sails and crossbones. Go with the EaseUS choice as your first pick.
If the recovery program manages to scan the files, copy everything over to a computer.
Reformat a different SD card in FAT32 + 32 KB cluster size with Windows File Explorer or
guiformat.
Full Write + Verify Test the empty card with
H2testw for hardware defects.
If the card passes, delete the *.h2w test files before transferring your copied setup over to it.