A firmware update was recently released for the NVR6XX-4KS2 series devices.

Information, instructions, and download links can be found Here

AVITroubleshoot

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Unable to Playback AVI

Prerequisites

Step by Step Instructions

1. Open VLC Media Player

AVItrouble001.jpg

2. Go to Media -> Open File

AVItrouble002.jpg

3. Now select the location of the file and click open

AVItrouble003.jpg

4. Now select the play button to watch your backed up file

AVItrouble004.jpg