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: The system will automatically reboot once the process is complete. This usually takes between 3 to 25 minutes depending on the model. The Guardian of the Gate: A Story of the Upgrade

Select the firmware file and click "Upgrade." The system will usually reboot automatically after 4–8 minutes. Shenzhen TVT Digital Technology Co., Ltd Method 2: Force Upgrade (For Unresponsive Devices) Power off the DVR completely. Tvt Dvr Firmware Download Free