I have recently repaired most of my New 3DS XL components as it has a lot of issues fortunately I could still use the same SD Card. I had to replace the motherboard and I was worried that I would lose my save file in Pokémon Crystal. Fortunately I did not as apparently my SD Card apparently is picking it up and saying the file is corrupted. I've seen things apparently recovering the save of my game. But, I'm not quite sure what to do as I do think it's in the SD Card as there's strings of numbers of files with .sav on them. So, I'm expecting one of them is the Pokémon Crystal save but, it's hard to tell since everything seems encrypted with random strings of files with letters and numbers. I can provide screenshots if needed as I am really confused by this.