My trusty old iPhone 4s has been working in my car using the Sync handsfree, until the last iOS update. A few days ago I updated my iPhone 4s to iOS 9.0 and since then I cannot use my 2010 Ford Fusion's handsfree calling. I can use the steering wheel buttons to initiate a call and then as the call is established the cars display shows "In Privacy" and the off-the-hook icon shows "Text", and no sound in the car - after a while I found that I can then take the phone out my pocket and continue the call. I've tried un-pairing, master reset of Sync, and updated the Sync software, and still cannot get the handsfree to work. The only thing I can think of now is to Jailbreak my phone and revert back to an earlier iOS version, but I'm not too familiar with that. Any suggestions would be much appreciated.