Dahua DHI-NVR5432-EI User Manual page 439

Step 4 Restart the Device.
After the Device restarts, the settings have been restored to the factory default.
5.19.4.4 System Update
5.19.4.4.1 Upgrading File
Procedure
Step 1 Insert a USB storage device containing the upgrade files into the USB port of the Device.
Select Main Menu > MAINTAIN > Manager > Update
Step 2
Click Update.
Step 3
Figure 5-308 Reset button
Figure 5-309 Update
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