File Backup - Dahua DHI-NVR5208-4KS2 User Manual

 Manual check: Click Manual Check.
The system starts checking the new versions. After checking is completed, the check
result is displayed.
 If the "It is the latest version" text is displayed, you do not need to upgrade.
If the text indicating there is a new version, go to the step 3. .

Step 3 Click Upgrade now to update the system.
4.10.4.4.3
Uboot Upgrading
Under the root directory in the USB storage device, there must be "u-boot.bin.img" file and

"update.img" file saved, and the USB storage device must be in FAT32 format.
Make sure the USB storage device is inserted; otherwise the upgrading cannot be

performed.
When starting the Device, the system automatically check whether there is a USB storage
device connected and if there is any upgrade file, and if yes and the check result of the upgrade
file is correct, the system will upgrade automatically. The Uboot upgrade can avoid the situation
that you have to upgrade through +TFTP when the Device is halted.

4.11 File Backup

You can back up the record file to the UBS device.
Step 1 Connect USB burner, USB device or portable HDD to the device.
Step 2 Select Main menu > BACKUP, the Backup interface is displayed. See Figure 4-201.
Figure 4-201
Local Basic Operation 267