Computer usb camera can't be used. What's going on here?

First of all, you need to check whether the USB cable of the camera is connected to the host (it is recommended to connect the USB interface behind the host, because some computer hosts don't have the USB interface in front. After checking that the line connection is normal, enter my computer device manager to see if the computer detects USB video devices.

The other is that the computer finds an unknown device, that is, the camera driver is not installed normally.

There may be two reasons for this phenomenon, one is that the camera driver is not installed correctly, and the other is that the USB interface has hardware failure.

Due to the rapid development of product technology, some new cameras may need to reinstall their own drivers before they can be used normally. Therefore, it is recommended to install the driver included in the camera package to see if it can solve the problem, or download a driver wizard to automatically detect the driver installation.

If it still doesn't work, try again with another computer. If it still doesn't work, there may be something wrong with the camera. It is recommended to send it for repair or replacement.