Dahua DHI-NVR5224-24P-4KS2 User Manual page 339

4.10.10.2 Cloud Upgrade
When the NVR is online, you can use the online upgrade to update the firmware.
Note
Make sure the NVR has properly connected to the network.
Version Detection
The version detection includes auto detection and manual detection. It displays current system version
and application released date.

Enable auto detection, NVR interactive with the cloud to detect there is new version available or not.

Click manual detection, it is to view the latest new version on the cloud.
 If current version is the latest one, there is prompt "It is the latest version".

If NVR detects there is new version available, system displays new version information such as
released date and corresponding release note.
Upgrade System
CAUTION
During the upgrade process, make sure the network connection and power supplying are both OK.
Click Start to upgrade system.
4.10.10.2.1 Uboot
Figure 4-229
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