I had a save on Pokemon Yellow that I had 100% completed, and was showing a friend from my console and they wanted to battle, I powered off, moved to the other console to battle with them and when I powered on... no continue option. no errors either.
I had been considering ordering a cart dump previously and this pushed me, I ordered one. I've dumped the save and pkhex wouldn't open it. Tried a few others without success.
Looking at previous requests I opened and compared the Hex to other examples and I think there's a chance there's recoverable data but it's beyond my skill.
I did confirm it's not a battery issue by creating a new save on the cart after dumping it and confirmed that the new save stuck so it doesn't appear to be a battery issue.
This represents many hours of play, and I'd love to get the save back if it all possible. I understand it may be irrecoverable and that's the risk I took playing an old game without to the tools to back it up properly.
Thank you for any effort made to assist
POKEMONYCopy.SAV