Left USB port charging continuously on then off iPhone 6s

Originator:indiekiduk
Number:rdar://27578857 Date Originated:
Status:Open Resolved:
Product:Mac Product Version:
Classification:Bug Reproducible:Always
 
Summary:
When connecting an iPhone 6s to the Macbook Pro left USB port it constantly makes the charging sound, e.g. charging starts then stops about every half second. See this forum post for other users with same problem:
http://forums.macrumors.com/threads/rmbp-left-usb-port-wont-charge-ipad.1834079/

Steps to Reproduce:
1. Connect iphone to left usb port

Expected Results:
iphoen should charge

Actual Results:
iphone constantly charges and stops charging making the connection sound every half second.

Version:
MacBook Pro (Retina, 15-inch, Mid 2015) 2.2 GHz Intel Core i7 Intel Iris Pro 1536 MB

Notes:
The right USB port works as normal. 

Configuration:
I've only had this problem with this model of Macbook Pro (see model below), my Macbook Air 2012 13" did not have this issue. 

Attachments:

Comments


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