Ok, I've tested all modes:

- "Headset without mic":
All ok.

- "Headset with mic":
Works fine for headset and mic with original Nokia headset. "Call Ended" button doesn't.

- "Video out":
only audio, no video signal.

- "Speaker":
switches steady to the speaker mode, from any other.

Can you make the source code for "headphonefix" available?
Thanks!