If the camera is completely bricked (wrong firmware, no IP response, or a failed update), the hardware button won't save you anyway. But a will. This resets the camera by interrupting its boot cycle.
With the camera powered off, use a pair of tweezers to "short" (connect) these two pads. Keep them connected while you power the camera on for 15–20 seconds. direct download links for the Dahua configuration tools or contact info for their regional technical support
