-First all you should install the DEMO of FIFA 12 PKG in the console.
-After opening the Multiman or file manager.
-You are looking for the folder of the DEMO of FIFA 12, NPEB90357
-Login to the USRDIR folder.
-Now on the other side of the screen you should find your FIFA 12 Original backup and enter USRDIR.
-Now, you must replace all the less the EBOOT files.BIN and the other fifazf.self, if you now do not work. Not replace the DATA folder.
-Now sales to the XMB and you run the DEMO, but there already has all the files in the backup.
Apparently, the game freezes after each match and you have to reset it to continue. I would assume that the save function is working, otherwise, it's useless unless you just play matches with your friends in the same room.
WiiU Nintendo NetWork ID :