I have a Nokia Lumia 928 and my wife has the Lumia 822. We are able to pair her phone, contacts, history and play music from her phone via the bluetooth connection in our Hyundai Sonata. The vehicle will pair with my phone and play music via the bluetooth connections but will fail to download or sync the contacts and history. I have verified through Hyundai bluetooth support that my phone is compatible for all the functions such as contacts and history plus more, but since my wife's 822 phone does connect with all of these, and other tests we did, it has been determined to not be a problem with the cars bluetooth system but some setting with the phone. We have compared each and every setting from her phone and my phone and still can't get it to dowload the contacts. I have talked with Verizon (our carrier) and there is nothing else they can see that would prevent this from working...so I'm wondering if anybody has any thoughts on this forum as to what could be preventing this from happening. Any thoughts?