Wifi not showing

Hello,

I have no option to connect to WiFi on my Vostro 15.

Windows 10 Pro, updated to latest version.

Qualcomm QCA9377 network card, latest drivers, system does not detect any problems with the card.

I also installed drivers from webpage dedicated to my product.

BIOS and other drivers updated.

I tried using Dell SupportCentre. When i try to fix network card here it says that i should first enable "Wireless network" but this button is locked.

WiFi is enabled in BIOS.

Please help what i can do.