I decided to buy a pair of headphones with remote control. Firstly I bought a really cheap AD-54 adapter, which has play/pause, next, previous, stop, vol up, vol down buttons and 3,5mm input. It is working fine with my N9. But I wanted to give it to my sister, so I bought a new pair of white (it's called "ice blue") WH-701 headphones.
I got them and... they do not work. They work well with all other Nokia phones (for example C7), but they do not work with my N9. I plugged my friend's black WH-701 into N9 and they do work.
When I plug my WH-701, I can hear only two squeaky sounds from headphones and the music comes from the phone's speaker. The buttons and the microphone do not work either.
I wonder if the phone identifies them as the video-out cable, or something?
Is there any way to fix it, or force the phone to play the music trough the headphones?