Regarding using bluetooth, I would recommend updating to the newest firmware before pairing up with your devices.
If you are having problems with older firmware, I suggest removing the device (in your bluetooth settings) and then update your DX16O firmware. After you do so, then do a fresh pair up with all your devices.
If you are having problems with older firmware, I suggest removing the device (in your bluetooth settings) and then update your DX16O firmware. After you do so, then do a fresh pair up with all your devices.