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Updated Sync in two vehicles, iPhone over USB no longer works


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I have two vehicles, a 2013 F-150 and 2015 Mustang. Both have the Sync with My Ford Touch. I have two devices, a Motorola Nexus 6 that I use as my phone and sync over Bluetooth, and an iPhone 5 running iOS 9.3 beta which I use as my music player and nav. The iPhone is connected via USB.

 

The iPhone's USB connection has always been flaky in the Mustang but rock solid in the F-150. In the Mustang it would sometimes show up as a device and sometimes it wouldn't. Sometimes it wouldn't show up at first but after driving a few miles down the road it would suddenly appear in my list of devices. It would always charge when plugged in, though. I thought that maybe a software update would fix things so I decided to update both vehicles' Sync to the latest version this past Saturday (I don't know what version either vehicle was previously and I bought the Mustang used so I have no history).

 

Well, after the upgrade, the iPhone no longer works in either vehicle over USB. As it did previously, the device does charge when plugged in, but now it never shows up, ever, no matter what I do. I've tried different cables (Apple and third-party branded) but it doesn't make a difference. The iPhone does work when I paid it with Bluetooth, but it's a wrestling match every time I start my vehicle as my phone is set as my preferred device.

 

How can I fix this? I just want the iPhone to show up as a device when I plug the usb cable in so I can get my music back. Thanks in advance.

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Thanks Rebecca. That wasn't the issue. The issue was that the iPhone wasn't showing up as connected. However, I've figured out the fix:

 

I was at the gym with my iPhone and when ending my workout I turned off my headphones and didn't touch the iPhone, so the music was paused. When I got back in my truck and plugged it in via USB, Sync's auto-play feature took over and resumed the music. It started off with the warning message about not to use while driving etc, which said to me that this was the first time Sync recognized the device. From that point on it worked fine.

 

My theory was that there's a missing piece in the negotiation and recognition of the iPhone by Sync. Whatever secret sauce there is that tells Sync that this was an iOS device didn't happen until the pause and autoplay forced its way into my stereo.

 

To test this theory I went home, stopped the iPhone and then plugged it into my Mustang's USB cable. No workee. I then unplugged it, hit play on a song, and plugged it back in. Blammo - The Sync device disclaimer came up and the device now shows up as a USB media device on the list of inputs in Sync. So it seems that the autoplay is key to waking things up. Rebecca, do you guys have a place to submit bug reports? I'm happy to submit one with all my details.

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