Gaming Rockband Unplugged

[mcboom]

I have had the game for a while and i decided to upgrade my cfw from 4.01 m33 to 5.00 m33 and my save file got corrupted for some reason so i decided to downgrade back to 4.01 then my save worked again is there a way to make my save work on 5.00 i'm tired of downgrading for this game and i worked too hard to just make a new one

 

[Izzy]

I'm not sure, but too me it sounds wierd that different save files does not work for different System Firmware. :S
I though not have a clue, unless there's a Save Manager which can upgrade Firmware of the save file. ;P