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Diagnostics

Every HID++ frame this page sends and receives. If something does not work, this log is what makes it fixable.

IDFeatureIndexVer
HID++ traffic 

      


      

        Setup notes

        
Linux

        

          Chrome talks to HID devices through /dev/hidraw*, which is
          root-only by default. Without a rule granting your user access, Connect
          will show the device and then fail on the first write. Install
          70-logitech-hidpp.rules from the repository, then replug the
          receiver.
        


        
Windows

        

          Close Logitech G HUB first. It claims the vendor collection this page
          needs, and while it is running the device will appear in the chooser but
          answer nothing.
        


        
Browser

        

          WebHID exists only in Chromium browsers — Chrome, Edge, Brave, Vivaldi.
          Firefox and Safari do not implement it, and there is no polyfill: it is a
          hardware permission, not an API shim.