Speco Technologies DVR-PC8 Series - Manual (Page 65)

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6.9 System
6.9.1. Upgrade
Use CD-R or USB storage device for program upgrade in the DVR.
Below is the way to install automatically.
1. Press [Start Upgrade] button.
2. Select a folder that has the programs (Disk1).
3., Insert the disk or the drive and click on the executable file.
4. When the installation is finished, the system will automatically reboot.
Note Do not forget to press the System Backup button after system
upgrade had been done.