I have a BRAND New x850BT. Everything works great, except Pandora, which is half the reason that I bought it. Using Bluetooth audio my andriod phone (GS4 Verizon) is able to play songs to the 850 just fine, and I get song / artist info. What I do not get is Pandora as a source, so I am missing the ability to thumbs up / down or change stations. I know this sounds silly, but again, it was one of the main drivers for buying it.
I have the 1.06 firmware on the x850 (the 1.04 had the same issue). I have also tried 2 iPhones both with IOS7. They are are the same. Play Pandora just fine, but