Two weeks ago in installed my 77" Samsung OLED S90D, I plugged my Firestick into HDMI_4, and the setup automatically labeled the HDMI port as "Firestick."
After moving it to HDMI_2, the Firestick works fine, but I can't get the HDMI port to display the "Firestick" label.
Is there any reason you cannot keep it plugged into the original HDMI port? Have you tried plugging another device into the "firestick" port to see if the name changed (or even the other device even works in it). Have you read through the manual to see if there's a setting to manually name each port?
