Which companies are Dahua-rebrands?

I doubt it, co-worker has a Lorex NVR, and follows the same manual upload firmware option as the Dahua. No auto-update feature can be found, unless it falls under a different option category.

Well, the question we should ask is does the end user update their system?

I know the Dahua OEM NVR appears that patching is initiated by the user. Is there an auto patch option?