A firmware update was recently released for the NVR6XX-4KS2 series devices.
Information, instructions, and download links can be found Here
File:Old NVR SU naming rule.JPG
From Dahua Wiki
Old_NVR_SU_naming_rule.JPG (513 × 438 pixels, file size: 28 KB, MIME type: image/jpeg)
Click on a date/time to view the file as it appeared at that time.
|current||20:46, 7 July 2017||513 × 438 (28 KB)||Kevin|
- You cannot overwrite this file.