Originally Posted by michaaa62

If things are saved, or you still have the files already copied before, this would write a copy of the superblock of a FAT32 filesystem only back

Code:

dd if=/dev/mmcblk0p1 of=/dev/mmcblk0p1 bs=512 count=1 skip=6

Note: If that is failing [check with the above fsck code] there is no way back but to rewrite the image your before took, or to knowingly wipe the partition and format it.