Type 3-How to upgrade DVR's system?

Support Team

Applies to:

DN81Q/DN41Q

Please check system current firmware build date. After upgrading, you can check if build date changed.

1. download the new firmware file to your computer.

PLEASE DON'T UNZIP THE FILE.

2. copy the file to your USB hard drive.

3. Insert USB hard drive to USB port of DVR.

4. Go to menu to upgrade

The system will reboot.

Check if build date is updated.

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