with your device's model number and current build date is recommended to ensure you receive the correct file. Update Methods There are two primary ways to apply a firmware update: USB Drive Method (Recommended for Offline/Legacy Devices): Download the file and extract the firmware file to the root directory of a FAT32-formatted USB drive. Insert the USB drive into the DVR/NVR port. Navigate to Main Menu > Info > Version and select Online/Direct Method (For Newer NVR Models): Some modern units, like the CP-UNR-108F1
Check the sticker on the bottom or back of your NVR, DVR, or camera. cp plus firmware update download