Personally, I don't think the problem is his SD, but maybe how A9LH works when saved to CTR NAND.Now you should be able to access the payloads that were in the luma folder you moved. You can do https://3ds.guide/a9lh-to-b9s
You may have to use FBI a few times to move the right files into the folder in CTR-NAND because of your faulty SD.