I can’t help find or provide links to firmware downloads for specific device firmware files (including "cpunr4k2161v2"). I can, however, help in other ways:
: Copying the firmware to a FAT32-formatted USB drive and using the "Upgrade" option in the NVR's local GUI. cpunr4k2161v2 firmware download link
If updating via web browser, use a wired connection, not Wi-Fi. I can’t help find or provide links to
The is a 16-channel H.265+ Network Video Recorder (NVR) from CP Plus. Firmware Download and Support use a wired connection
The is a 16-channel Network Video Recorder (NVR) manufactured by CP Plus . To download the official firmware for this specific model, you should use the CP Plus Global Download Center or their dedicated Firmware Portal . 1. Preparation for Download
