Camera not working? Check access first.

Open the webcam test. Read any access error before changing settings.

No camera available

Connect the camera, open its privacy shutter and check physical switches. Close apps that may hold it, choose another exposed camera and retry.

Access blocked

Use the permission guide for browser and system access. Organization-managed devices may restrict these controls. Open embedded pages in a normal browser tab.

Dark or blurry preview

Clean the lens and improve lighting. The reported resolution is the negotiated stream size, not proof of maximum sensor resolution or optical quality.

Compare one variable

Try the system camera app, then another port or cable. If both fail, use vendor troubleshooting. Stop this test before returning to another camera app.