DVR / NVR - How to manually upgrade the firmware of your recorder
Download and install the (available for free on the official Dahua website). dhxvr1b16h firmware free
41.8781° N, 87.6298° W.
Before updating, you must know your existing version. Incorrect firmware (e.g., flashing an XVR1B16H-I firmware onto a base XVR1B16H) can the device. DVR / NVR - How to manually upgrade