I don't think there is one.
Note: what I'm about to say only applies to bootleg copies that stores the save as a sector of the rom dump.
Not every bootleg treats saves this way.
For starters, learn how to find a save in your rom dump using hex editor.
Once you get that done, learn how to replace the save in your rom dump using hex editor.
If you cannot get the above 2 points done, no point worrying about restoring the save.