A firmware update was recently released for the NVR6XX-4KS2 series devices.
Information, instructions, and download links can be found Here
From Dahua Wiki
email@example.com (180 × 111 pixels, file size: 3 KB, MIME type: image/png)
Click on a date/time to view the file as it appeared at that time.
|current||19:24, 19 April 2017||180 × 111 (3 KB)||JP Wenger|
- You cannot overwrite this file.