I have the WiFi version. If I plug it in straight into the USB I can no turn the LED on. It works great on iPhoneOn my Windows 10 laptop,I plug in the Teslong cable into my usb port on my computer.Then I go to the Window symbol on the bottom left of my screen.Scroll to camera and click on camera and you should be able to get it to work from there.On the top left of your screen,click on the setting if you need to do anything to make it work.