Buttons Not Working

I’m not really sure how it happened because it started after getting it back from someone.  The only buttons working fine are the Menu/Power, and Next/FF.  I’ve had a couple problems before, but they were easily solved thanks to this forum.  Now, the thing looks as if it can’t be fixed by any easy method.  I was wondering if anyone else had the same problem, and would like to know if it can return back to how it normally was. Help would be greatly appreciated, but… it’s dead for good?