Forgot to update this topic, but i finally found the way to resign it, it was an issue with Bruteforce due to Win8.
I just changed the UserID from my Param.SFO with HxD and it worked fine.
Btw i'm on Rogero 4.50
EDIT:
Originally posted by gt416
If I can get this game save to work can I go online with it Thanks.
When you resign a GT6 save, if you want to use it online you need to modify something with CCDebugger, and it only works for CFW consoles. If i'm wrong, correct me (for other CFW users)
Ofcourse, it can be fixed easily if somebody does that part for ya.