That depends on your NVR/DVR, weather the firmware has been released for that model, so find your model number...something like DS-7604NI...etc and do a search for Hikvision Portal UK(Change UK to whatever country you are from) Then search for firmware, the back ends, then find your model code, OR simply google search 'Latest Firmware for 'Insert your DVR/NVR Model code'
thanks,, it's helpful
Can I clean up an image on my playback
How can i download nvr 4.0
That depends on your NVR/DVR, weather the firmware has been released for that model, so find your model number...something like DS-7604NI...etc and do a search for Hikvision Portal UK(Change UK to whatever country you are from) Then search for firmware, the back ends, then find your model code, OR simply google search 'Latest Firmware for 'Insert your DVR/NVR Model code'