Firstly ensure that the icon you are injecting into the save isn’t the same as the one you are trying to replace. The ones included with Icon Injector are known to be correct, so try injecting one of those.
Secondly you must remove the corresponding save from the memory card if it is on there. For games such as FFX or Kingdom Hearts etc that use multiple saves only remove the save that you intend replacing. If you fail to do this the Xport/Sharkport software will only send across the game data and not the new icon data.
Posted in: Xport / Sharkport FAQ