LG VS985 can’t connect

I have a VS985 Android 5.1.1

I want unlock but I couldn’t connect.

there’s no menu for PC Connection…Plz help

To connect the phone in normal mode you need: Go to "Settings -> PC connection -> USB connection type -> Internet connection" and select "Modem";

Here’s log…

Platform: LG Qualcomm
Selected port: COM1
Selected model: VS985
Reading info…
Could not detect mode!