The chip is bad may cause the camera can not be used, there may be the driver is not installed or the camera connection and other issues, you need to step by step to troubleshoot. You can look at the brand and model of your laptop, and go to the brand's website to download the driver for this model of camera. Re-download and install the driver, restart the computer to check.
The webcam, also known as the computer camera, computer eye, etc., it as a video input device, in the past was widely used in video conferencing, telemedicine and real-time monitoring. In recent years, with the development of Internet technology, network speed continues to improve, coupled with the maturity of the photographic imaging device technology and a large number of camera manufacturing, which makes it possible to reduce the price to the level of the average person can afford.