I upgraded my 2012 Mac Mini to Catalina last night and now my Logitech m510 doesn't move the mouse cursor and the mouse button clicks don't do anything. It will scroll and shows as connected in the Logitech software. I have updated the Logitech software from their web site, and the Unifying receiver firmware, and I have given them security. Logitech M570 not working properly with Catalina. Scroll wheel is exceptionally slow (almost nonfunctional) and forward/backward arrow buttons do not function at all. Logitech Control Center in Preferences recognizes the mouse and is allowing for parameter changes to all aspects of the device, but functionality is paralyzed.
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We have discovered a problem with Harmony Desktop and syncing. This is impacting customers on mac 10.15.4. Please download the latest version of Harmony Desktop by clicking on 'Using Harmony without a hub?' below.
NOTE: Ensure that the old version of Harmony Desktop is closed or uninstalled before installing the new version.
Using macOS 10.15 Catalina?
As of macOS 10.15 Catalina, 32-bit software such as MyHarmony and Logitech Harmony Remote legacy software will no longer run and will require an update for it to work. If you’re using a hub-based remote, you will need to use the Harmony app on your iOS or Android device. You can also continue to use MyHarmony on a computer running Windows or macOS 10.14 or lower. If you have a remote that doesn't use a hub, you may download the latest software using the links on this page.
See Harmony and macOS Catalina for the latest information.
Upgrading to macOS 10.15 Catalina?
Run Logitech Unifying Software
As of macOS 10.15 Catalina, 32-bit software such as MyHarmony and Logitech Harmony Remote legacy software will no longer run and will require an update for it to work. If you’re using a hub-based remote, you will need to use the Harmony app on your iOS or Android device. You can also continue to use MyHarmony on a computer running Windows or macOS 10.14 or lower.
Logitech Unifying Software Mac Os
If you have a remote that doesn't use a hub, you may come back to this page and download the latest software once you have upgraded to Catalina, your operating system and version will be detected by the page and you will be provided with the correct software for your Mac.
See Harmony and macOS Catalina for the latest information.
Use the MyHarmony desktop software or Harmony mobile app* to set up and sign into your account. From there, you can add devices, set up Harmony Activities, and make changes to your configuration. If you have a Harmony hub-based product, use the Harmony mobile app to set up and configure Harmony.
If you're using an older Harmony remote model, such as Harmony One, 880, 900, 1000, or 1100, see: Logitech Remote Software v7.x
*You must have a hub-based product to use the Harmony mobile app.