I've the 3.0 firmware installed and bluetooth is working, but I can only hear the other person when I call someone (or receive a call). I looks like everything is working except for the microphone (critical part if you ask me !! )
I also saw that the Microphone AV settings was on 'Mute' and not able to change. The settings was grayed out (not enabled).
I'm really sure that my mic is properly connected because it worked until I changed the firmware to 3.0. Then bluetooth also stopped working but I fixed that by reinstalling the bluetooth firmware.
Can someone help me to enable / un-mute my microphone?