A firmware update was recently released for the NVR6XX-4KS2 series devices.
Information, instructions, and download links can be found Here
From Dahua Wiki
PortForwardDiagram.jpg (299 × 414 pixels, file size: 27 KB, MIME type: image/jpeg)
Click on a date/time to view the file as it appeared at that time.
|current||21:04, 12 October 2015||299 × 414 (27 KB)||JP Wenger|
- You cannot overwrite this file.