Do not unplug the camera or turn off the power during the update. If the power cuts out midway, the camera can become "bricked" (unusable).
Updating the firmware on a Ctronics security camera can fix bugs, improve security, and occasionally add new features. However, because Ctronics manufactures many different models (PTZ, Bullet, Dome, Battery-powered, etc.), the process varies slightly depending on the specific camera you own. ctronics firmware update