Alright, so I've been able to recover my save file through FBI & Checkpoint.
If this helps someone, here's a tip: I first browsed into saved data , then I moved the 'main' to my SD card, then I opened the file on PKHex, exported it and restored it on my digital copy with Checkpoint.
@Kaphotics sorry for wasting your time. Thanks anyway for your help. Also, I really appreciate your work.