I have a customer that just purchased the F700BT. After installation and pairing his phone, (Samsung i760) he is having problems with the bluetooth functions. The phone will connect but will only have audio through the phone's ear piece. I paired my phone and it works fine. So it's not a problem with the head unit. The F-series has the latest software update and the phone has all the current software. Pioneer says it should work and they have heard of no problems with this phone. His phone also works fine with other BT devices. Any help with this would be great!