Hardware Question about game saves

[Quinnarz]

so basically my predicament is: I have an injected version of Fire emblem four that has been translated to english, after beating the game you unlock the hard mode unfourtently with the english patch the game freezes at the very end of the epilogue. To get around this on your computer you simply remove the IPS file, finish the last turn via the untranslated rom and then repatch it after. My question is if there is anyway to do this on the Wii while keeping the same save file? i really have no idea how the save file directory's work so any help would be helpful.