Download File Firmware_dvr_4ch_cp-plus_4mb.rar -

: After the system reboots, it is highly recommended to go to Settings > System > Maintenance > Factory Default to ensure all new features and security patches are correctly applied.

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: Move the extracted .bin file to the root folder of the USB (not inside any folder). Download File Firmware_DVR_4CH_CP-PLUS_4MB.rar

: Use a drive between 4GB and 32GB, formatted strictly to FAT32 .

: Go to System > Upgrade , browse for the .bin file on your computer, and click Upgrade . Post-Update Checklist : After the system reboots, it is highly

: Use software like WinRAR or 7-Zip to extract the .rar file. You should find a .bin file inside, which is the actual update data. Installation Guide

: Plug the USB into the DVR port. Navigate to Main Menu > Setting > System > Upgrade (or Info > Version > Start depending on your model series). Support

: Select the file and click Start . The system will restart automatically once finished. Do NOT power off during this 5–10 minute process. Method 2: Web Interface