A firmware update was recently released for the NVR6XX-4KS2 series devices.
Information, instructions, and download links can be found Here
From Dahua Wiki
PFM700.jpg (370 × 370 pixels, file size: 9 KB, MIME type: image/jpeg)
Click on a date/time to view the file as it appeared at that time.
|current||01:22, 15 December 2015||370 × 370 (9 KB)||Qi Chen|
- You cannot overwrite this file.