You can use the Fire TV app on your smartphone as a remote for your Firestick as long as the devices are connected to the ...
To pair a Firestick remote with your Amazon Fire TV, you can use the "Home" button or the TV's settings menu.
To control your TV's volume using your Fire TV Stick remote, head to Settings > Equipment Control > Manage Equipment > TV > Change TV. Now, select "Change TV," choose your manufacturer, and follow the ...