My 2015 DVT paired with my Sena 20S but will not pair with my phone. I have an iPhone 6+, as if it mattered. When in the process trying to pair the bike and phone the bike's display shows the code of "0000" to input into the phone. It only displays the code for literally a split second when every other device I've ever paired holds the code screen until I input the code. The phone does give me the opportunity to enter the code but only once. When it fails each time I have to turn off BT on my phone to get it to the code input screen again. Same thing happens every time. I just picked the bike up yesterday and was told it had all the latest updates. Is there any point to pair just a helmet comm system to the bike? I can't think of one. This is all hugely disappointing. Being a tech guy I was really looking forward to playing with it. I guess now all I can to is enjoy all the other awesomeness the bike proves when actually riding it. ????
Don't give up - it works. That being said, I have re-paired my phone several times experimenting with things and experienced the exact same problem with my Sena 20S and iPhone6. I'll delete my phone and re-pair it on today's ride to confirm, but IIRC the trick is that you don't need to tap on the "Ducati Multimedia System" in your Bluetooth menu on your iPhone. Let it come up on your bike display, arrow up to connect, hit menu to select "Connect" and then the "Enter PIN" message will STAY up there and the iPhone will ask you to enter the PIN. If you click on the "Ducati Multimedia System" on your iPhone, it will appear to work normally, but when the "Enter PIN" message comes up, it disappears almost immediately - just as you were describing.
*** Oh, I almost forgot, if you have your Sena 20S paired to your phone, go into the Bluetooth menu on your phone, click on the blue "i" to the right of the Sena 20S and then choose "Forget This Device". It doesn't work well having the headset paired to your phone AND the bike at the same time. It is like they are fighting for control and it constantly pairs back and forth between the two.
All told, the only real issues I have are the volume control not working and the issue I documented where when I have my passenger headset paired at the same time, the music audio cuts out almost completely. Yes, controlling the player/phone took a little getting used to, but I now have 1100 miles on my '15 with my iPhone 6 and my Sena 20S and really enjoy all of the DMS features. Being able to see what song is playing, play/pause/change tracks, see whether I have a text/message and obviously being able to take a potentially important call from the wife.
I rode 400 miles the last two days and only had the audio cut out maybe a half dozen times for less than a second. It's Bluetooth - there's going to be occasional interference. I can live with that. The issue when having multiple headsets connected where audio is completely useless, that needs to be addressed by Ducati (and I am confident it will be). For the record, until it is, I simply pair my phone to my Sena (instead of the bike) for rides with my wife and then use the Sena "Audio Sharing" option to listen to the same music.
Sorry for the longwinded post. I am an IT guy and worked through most of this stuff right away when I got the bike. Like others, I am still waiting for that Link App where we can see the telemetry/data from our rides. C'mon Ducati!!
Anyway, give it a shot and let me know how it goes...