Hardware PS Vita Refusing to let me restore a backup

[MahouMaster]

So, after shelling out an abominably large amount of cash for a bigger memory card, I've backed up my tiny 4 gb memory card onto my back.
Now, I'm trying to restore the backup file onto the Vita, but every time I do so, it reaches 2% and then throws up an error code (which is, surprise surprise, useless to google). Before doing so, however, it wipes the card, as I discovered when trying to restore the back up to the smaller memory card just to make sure it wasn't the file.
What on earth is wrong here?

 

[masterchan777]

Try to erase the backup file/folder using your PSVita, then backup your 4GB card again and try to restore to your larger memory card, maybe the backup folder got corrupted for some reason. In fact, I backed my 4GB card up and restored to my 32GB with no problems at all so things should be generally fine.