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I want to connect an iPhone 6 to my 2016 12" MacBook.

I have a USB-C to USB-A adapter. If I connect the iPhone, macOS shows a warning (translated): USB device requires power (Note: It just says power, not more power). Original text is (German): USB Zubehör benötigt Strom. The iPhone is neither recognized by iTunes, nor does it charge.

The MacBook was connected to power supply via: MacBook USB-C to USB-A to USB-C MacBook power pack to power outlet. (My USB-C to USB-A Adapter has 2 USB-A outputs, so basically one output goes to iPhone, one to power supply).

How do I resolve this issue?

  • Too many adaptors, one of which is either faulty or not designed to do what you want. Connect just the USBC > Lightning cable to the Mac. Does it charge and can it be seen by iTunes? – IconDaemon May 4 '18 at 10:54
  • Actually it´s just one adapter: The USB-C - USB-A, which really might be faulty. I dont have a lighting-USB-C cable. – dan May 4 '18 at 12:12
  • Ah. You use a USBA > Lightning cable. Got it. Amazon (US) has a USBC <> Lightning cable for US$14.00. Apple's cable is US$30. Perhaps it will be a worthwhile purchase. – IconDaemon May 4 '18 at 14:47
  • thanks, t must be really the adapter then which causes the problem. – dan May 7 '18 at 11:26

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