I have this flute.When I first got it,it played this “scale”:
D,E,Fnat,F#,G#,A#Cnat,C#.I’ve been tuning it,and now it plays D,E,F#,G,A,B,C#,C#.The note that’s supposed to be d is still a semitone flat.The e is also flat,but then the g,a,and b are sharp.Moving the cork around doesn’t help.Is there anything I can do about this?I don’t need great results,just a mostly in tune flute.Thanks!
-Kelly
Make a lamp out of it. 
you can try putting some wax in the upward sid of the sharp holes, this will flatten them some, if it is like the pakastani flutes, the holes are in the wring place, it this is the case, go to plan A and make it into a lamp…
Jon
Really?Isn’t there anything I can do about the flat “d”?That’s the note that bothers me the most.I can bend the sharp notes down enough that they aren’t too bad,but trying to bend the “d” up doesn’t really work.
I’ve noticed that after playing around on this flute,my tone is better on my good flute.So something good has come of it,anyway. 
-Kelly
If it’s a Pakistani or India Flute, it might be the diameter of the headjoint.
I bought one of those little Jazz Studio Piccolos and the tuning was insane. It turned out that the headjoint was for a different key than the body and making a new headjoint with the right diameter fixed it.