XPS 15 9560 External mic does not work anymore.

Hi.
I have problem with my XPS 15 9560. I have external mic (Zalman ZM-MIC1) which is usually connected to my mini-jack input of my PC. Also usually there was this pop-up after startup of the system or after mic was plugged in, where I could choose what kind of device is connected. Recently I realized that I actually using build-in mic instead of external one and now there is no this pop-up any more. I found some similar topics with tips like: update system, reinstall driver, mark checkbox in MaxxWave app, both non of these worked. Any suggestions what else I can do to enable external mic?