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iPhone 16 Pro doesn't connect to iMac via USB-C

So, iPhone 16 Pro when connected to iMac with provided USB-C cable is not charging and not recognised by Mac.

  • Cable is good (works with other phone)
  • Mac port is good (works with other phone)
  • iPhone port is good (everything works, charges and connects with usb-c to usb-a cable connected to usb-a port on the Mac)


What now??

iPhone 16 Pro, iOS 18

Posted on Sep 20, 2024 12:06 PM

Reply
Question marked as Top-ranking reply

Posted on Sep 20, 2024 1:41 PM

I was just informed by Apple that my IMAC will not connect to the new 16's.

Although my IMAC is only a few years old, it is not cabable of running Sequoia therefore the new IPHONE 16's will never connect with this computer!


So you upgrade the IPHONE, and now have to by a new IMAC to make things compatible.


NOT HAPPY!!!

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29 replies

Jan 18, 2025 8:35 PM in response to ronline1111

ronline1111 wrote:

I had tried a couple of NON Apple USB A to USB C cables (camera chargers) I had lying around and they Did Not work. Not every cable will work. I believe it has to be a good quality cable.


Some USB cables (including USB-C cables) just have the pins for 5V power connected. "Charging cables" are infamous for this – some carry data, others don't. Get one where the data pins aren't connected, and the Mac does not even know that the phone is there – and it's not a problem with the phone or with the Mac.

Jan 18, 2025 8:47 PM in response to kingmatteo

kingmatteo wrote:

Hello, good news for everybody !!
I just updated my new iPhone 16 Pro Max to iso 18.1 then I updated my iMac Late 2017 21,5 4K 3 GHz Intel Core i5 quad-core to the last version od MacOs Ventura, build 13.7.1 (22H221)
Then the first time you connect the iPhone to the Mac using a Thunderbolt 4 cable (even if my iMac has only 2 Thunderbolt 3 ports), the system will recognize the iPhone, then the system will download an items to fully support the phone and DONE !! now it works good !! I made a backup of roughly 250 Gbytes in just 5 minutes !!!!
It seems that was a software issue now patched !!
enjoy !!


There's nothing wrong with using a Thunderbolt 4 cable here – but I suspect that it is overkill. A Thunderbolt 4 cable is a USB-C to USB-C cable that is high-quality enough to be suitable for just about everything, including Thunderbolt 3/4, DisplayPort Alt Mode, USB4, USB 3.x, and USB 1/2.


The iPhone 16 Pro and Pro Max support USB 3 at up to 10 Gbps. So a plain high-quality USB-C cable rated to carry data at up to 10 Gbps (USB 3.1 Gen 2 speed) should be up to the job - at a small fraction of the cost of a Thunderbolt 4 cable that has to reliably carry data at 40 Gbps.

iPhone 16 Pro doesn't connect to iMac via USB-C

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