Galaxy S6 not seen by pc at all
I was getting very frustrated with my Samsung Galaxy S6 and my new Dell Precision M3800 and USB connectivity. Apparently the S6 is not fully compatible with USB 3 connections. I could not get it to connect (other than charging) to any of the 3 USB 3 ports on my laptop (no usb 2 on the new Dell). It connects fine to my older laptop (USB 2), so I decided to try connecting a USB 2 hub to my new Dell and the phone to the hub, and it works!
So, Samsung, please fix this!