Solution: How to reveal hidden FireTV menu with Harmony 650Hi folks Using a USB wireless keyboard connected to the Fire TV I have managed to find a solution which will reveal the hidden menu. The required combination in the Flirc app 'Full Keyboard' option is: Left-Windows key and F12 key. This combination should be recorded to the appropriate key on the remote in the usual way. The hidden menu is then revealed with an extended press on the remote key.