How can I access my Samsung Galaxy S5's modem with QXDM? I rooted my samsung sg-G900H. When I connect it to my PC and look for a COM port, there is no COM port, so I can't connect to it with Qualcomm eXtensible Diagnostic Manager (QXDM). How can I enable serial port access to the modem and connect to it with QXDM?
This thread on the XDA forum describes it.

Here is a short code to get the phone to show debug mode:  *#197328640#