iMac 5K port charging devices strangely

[aevan]

This happened on several Macs before, but most recently on my iMac (5K from 2014). When I plug in an iPhone or iPad the charge starts and stops and starts again. Like it keeps connecting and loosing connection and connecting again. When I change the port, it seems ok. Later, both ports work fine. Then, sometimes, it is a different port that does the same thing. And it only seems to happen with iOS devices. I had a similar experience with both MBPs too and with different iPhones and iPads.

Anyone has any idea what’s going on?

 

[chscag]

Did you try swapping cables? Even the Apple supplied lightning cables wear out.

 

[aevan]

Did you try swapping cables? Even the Apple supplied lightning cables wear out.

Hmm. Good point, I'll try a different cable. Although, I have a lot of Apple lightning cables and I'm sure it wasn't tied to a specific one. But I will try changing.

 

[J.Gallardo]

Happens to me sometimes. And I charge my iOS devices always from charger.
I just unplug lightning port, flip it over & plug again. It fix it.
Lightning connection seems to be very sensitive... Try cleaning the lightning hole in your phone also; just use a brush lightly.

 

[aevan]

Happens to me sometimes. And I charge my iOS devices always from charger.
I just unplug lightning port, flip it over & plug again. It fix it.
Lightning connection seems to be very sensitive... Try cleaning the lightning hole in your phone also; just use a brush lightly.

Thanks for the tip!