A firmware update was recently released for the NVR6XX-4KS2 series devices.
Information, instructions, and download links can be found Here
From Dahua Wiki
4.0MP,1.3,4.5mm,83.1m.JPG (637 × 367 pixels, file size: 17 KB, MIME type: image/jpeg)
Click on a date/time to view the file as it appeared at that time.
|current||23:43, 5 July 2017||637 × 367 (17 KB)||Kevin|
- You cannot overwrite this file.