UPDATE: Just short of taking the iPhone back to the Apple Store, since AppleCare couldn't figure out what was wrong; I did a sync, hardboot, and finally got the BT to pair up with the iPhone after about one hour with AppleCare Support (kinda' sounds like an oxymoron to me), but AppleCare was no help, so I asked them if I could get a refund on my AppleCare since it's apparent that they have no idea what they're doing when it comes to iPhone troubleshooting. lol They apologized and said they've had several calls regarding BT connectivity losses and recommended to "keep trying" since there is no known problem nor is there a fix. OK, if I'm on the phone with you and "complaining" about a problem, then I would think "there is a known problem" by myself and the many others that have called in with this same situation! Gawd, I felt like hanging up, but just waited it out, and actually fixed the situation by repeating the sync, and hardboot. I can see why they don't call AppleCare Support "Genius'" or anything close to that, it seems that every time I call them with a problem, they act like my situation is the only one they've ever heard about until their Mickey Mouse across the board FIXES don't work.... I'm exhausted from dealing with ACS 😡😡😡😡😡😡