Trying To S-Off HTC 626s From Virgin Mobile/Sprint But Program Doesn’t Read Phone

I have a rooted HTC 626s running android 6.0.1 and I have been trying to get the S-off so I can change the IMEI number but the XTC 2 Clip program doesn’t recognize my phone when I click "read phone information" I even deleted the drivers from my computer and installed the one from the website but still no luck. I don’t know whether or not the phone being rooted or its operating system has anything to do with it. Could somebody help me out please?