UniFi Video 3.9.7 Release

by Ubiquiti Employee ‎06-20-2018 12:14 PM - edited ‎06-21-2018 01:34 AM

System Requirements

  • NVR appliance or a 64-bit OS from the Files section below
  • Intel Atom D2500 CPU
  • 100GB HDD
  • 4GB RAM
  • Google Chrome
  • 500GB HDD or larger
  • RAM Disk for Windows installations - How-To


Important Notes

  • Self-installed Linux systems will need to do a one-time upgrade from 3.9.6 to 3.9.7 via wget/dpkg.  Please see the instructions under the Installation section and the links under the Files section of this post.  This does not apply to UAS or NVR installs.
  • There is a new experimental motion detection algorithm that has very positive feedback from the beta run.  We're going to leave it as experimental and opt-in for now and you can test to see if it suits your environment better.  To enable it:
    • SSH into the camera and execute: 
      ubnt_system_cfg write test.analytics.bgmodel ubnt4; cfgmtd -w -p /etc; reboot
    • If you would like to revert back to the original algorithm, execute:
      ubnt_system_cfg write test.analytics.bgmodel ""; cfgmtd -w -p /etc; reboot
    • A couple things to know when enabling this algorithm:
      • Many users reported needing to make their motion zone more sensitive compared to the previous algorithm
      • This change will not persist through firmware upgrades, we will be looking at incorporating it into the UI after pending feedback here.
  • All Linux commands below are for the NVR appliance and Debian 7. Different Linux distributions will have slightly different commands
  • Your Ubiquiti Account (SSO) is the same account you use to login to the community forum. If you want to use a different account for UniFi Video, first log out of the community before setting up UniFi Video for cloud access
  • Systems that are not the hardware NVR (airVision-C or UVC-NVR) must have some form of an NTP daemon installed to prevent timestamp and time synchronization errors



  • Windows: Run Installer as Administrator
  • Hardware NVR/Debian Install manual installation (other Linux files are linked at the bottom of this post, simply change the URL and filename to the appropriate operating system):
    wget https://dl.ubnt.com/firmwares/ufv/v3.9.7/unifi-video.Debian7_amd64.v3.9.7.deb
    sudo dpkg -i unifi-video.Debian7_amd64.v3.9.7.deb 


Cloud Setup

New Installations

  • Visit https://video.ubnt.com using Chrome from a computer on the same network as your UniFi Video installation.


  • Connect to your NVR locally (over HTTPS using the server's IP address on port 7443), then click 'Connect To My Ubiquiti Account' under NVR Settings.



Change Log 

Camera Firmware

  • New Version: 4.4.6
  • Improved Adaptive bitrate ramp-up when motion is detected
  • Fixed camera snapshot request failure
  • Fix purple-ish video flashing issue under low light conditions
  • Fix incorrect IR led level adjustment
  • Fix an issue of smaller speaker volume too low (UVC Micro)
  • Motion analytics performance improvement for G3 series camera (experimental)
  • Fix factory reset regression introduced in v4.2.72
  • UVC-G3-Flex image quality improvement (outdoor sky scenes)




  • No change: bundled version 1.0.31





  • N/A

Security improvements:

  • N/A

Bug Fixes:

  • Fixed database auto-repair being interrupted due to corrupted DB journals
  • Improved support for UI feedback when UniFi-Video is started
  • Fixed illegal path exception when upgrading Debian installation package from the web app
  • Fixed backup restore regression introduced in 3.9.6


Web Interface


  • N/A

Bug Fixes:

  • Minor update for GDPR compliance
  • Improved UniFi Video start-up feedback
  • Removed aggressive anti-flicker setting from UVC-G3-Pro settings
  • Added IR sensitivity setting to UVC-G3-Pro
  • Added play rates to video playback in fullscreen video



  • In Live View, when switching between Live and Recording channels, the video temporarily freezes. This is also causing recording at that moment to freeze when played back.  We have identified the root cause and it is not a trivial fix.  Stay tuned for a future release that resolves this bug.
  • We are aware of some issues with the iOS app and have addressed it by rolling back to a known working version on as many models as possible.
    • iPhone X users will continue to experience audio issues for the time being, we will be working as quickly as possible to resolve this as well as incorporate the full support for new camera models in the form of iOS App updates.


Port Forwarding/Custom Ports

If not using Cloud login, please check this article for required open ports and customizing ports





*Cloud functionality is peer-to-peer. All video is encrypted and not stored on our servers.

**These are the only officially supported Windows operating systems