Are you sure he hadn't heard of the hack that is only available for Xbox 360?
also you can't just get 2 save files and compare them, they are unicoded and make no sense at all in any hex editor.
If you're wondering why the xbox one can be hacked yet the ps3 one can't compare the save files in a hex editor, the device and user ID in the xbox is there for you to see in the hex file whilst the ps3 one is complete nonsense.
If you want to follow the 2 saves route, make a new account and a new vp save your game copy your save to your pc, return to fifa play the vp as in the glitch
You must login or register to view this content.. resave your vp copy the data to your pc now compare