Applies to Models:  Wisenet Wave

Summary:

Although it is never recommended to downgrade a Hanwha Wave System, there are certain cases where a user may need to downgrade their Hanwha WAVE System after an upgrade to the latest release. This article outlines how to accomplish a downgrade. Wave automatically creates a backup of the previous version database before every upgrade.

Note: Our Software Development Team only adrresses software level issues on 
the most recent release of Wave. If you revert to an older version. You would
be forced to upgrade should any issues arise. 

Step By Step Guide:

1. Stop the Hanwha Media Server service

Note: This process may cause the Recording Licenses to drop out of the databasw.
Please export your Recording Licenses under System Adminstration>Licenses. Click
the Export button in the top right of the License screen, and save the license key
list to your desktop

2. Navigate to:

• In Windows
  

  C:\Windows\System32\config\systemprofile\AppData\Local\Hanwha\Hanwha Media Server

• In Linux
  

  /opt/hanwha/mediaserver/var

3. Locate the current ecs.sqlite

4. Move this file to a folder on your desktop

5. Navigate to the backup directory, which is in the same directory as the ecs.sqlite

Example: 
Windows - C:\Windows\System32\config\systemprofile\AppData\Local\Hanwha\HanwhaMediaServer\backup
Linux - /opt/hanwha/mediaserver/var/backup

6. Copy all of the files out of the directories above to your desktop

7. Uninstall Wave via the Windows Control Panel

8. Re-install the prior version you wish to roll back to

Note: You can obtain older versions from support. The version you restore much match
your backup file

9. Setup the new install as a New System in the setup wizard

Note: This creates new ecs.sqlite

10. Stop the Hanwha Media Server Service

11. Find the backup file you wish to put back into the system

Note: ecs_36634_1689352709991_timer.db - ecs_36634 indicates this backup file was from
Wave Build 36634. You could also look at the modified date and select the most recent
backup file

12. Rename the new file to ecs.old

13. Rename your backup file to ecs.sqlite

14. Start the Hanwha Media Server service

15. Log into Wave

16. Verify your server is operational

Note: These steps must be repeated for every server in a multi-server system

17. If your server(s) are connected to Wave sync, re-establish this last, after all of your servers are functional