Identify the current assignment
Press the customizable star button once and note whether it opens an app, displays the Google Home panel or cycles television inputs. These are the three shortcut categories described by Google. A button currently controlling inputs is performing a different task from launching a Google TV application.
Keep the television’s input state with the observation. If the button changes away from the Streamer’s HDMI input, return to that input before inspecting its on-screen settings. Otherwise the expected Google TV editor may be hidden simply because the display is showing another source.
Use the route for an input shortcut
Google’s general edit instruction is to hold the star button for one or two seconds. Its help separately says that if the original shortcut displayed device inputs, use All Settings, Remotes & Accessories, Set up remote buttons, Customizable button to choose the new type.
The same note says to keep the path between remote and display device unobstructed. Follow the current control route for the supported Streamer setup and choose the task you now want. Confirm the resulting message rather than treating a menu visit alone as a completed assignment.
Test one press after the change
Once the shortcut is created, test a single press and observe whether it performs the intended app, Home-panel or input action. Keep this separate from configuring volume and power buttons, which Google documents through their own setup.
If the assignment does not change, record the paired remote model, Streamer software, previous shortcut and exact settings route used. A generic instruction for an older Chromecast remote may not describe this physical star button. This focused report distinguishes a shortcut-state issue from the television being on a different HDMI input or an unrelated streaming application failing to launch.