I've had this issue before. I am able to get LE back up and running on my RPI 2 using a new SD card, I was also able to transfer my files over using the file manager once I setup the new card.
The issue I'm having and it's driving me crazy, and not that I need the old SD card, but I'm determined to get it back working, LOL, I've tried everything to format the corrupted SD card, but no luck, I've done a check disk and no issues were found. I've tried numerous programs to format the card and failed every time, I've even tried in the Windows command prompt and no luck. Anyone have any other suggestions. Like I said it's simply a challenge now, LOL It is a Sandisk 8GB Micro SD card,
I've used the below apps
SD Card format
All above to no luck
I'll take any suggestion, Also I can delete the files from the SD card from one partition, but once I close out and check again files are back there. I don't need to save anything on the card simply want to format it. I even tried putting it in my camera and format from there and no such luck.