Change the tv to the new hdmi input to see if the issue is resolved.
Connecting firestick to lg tv.
The downsides of using the firestick with an older tv.
You can easily pair a new amazon remote to an amazon firestick by pressing and holding the home button on the remote.
If your tv has a headphone output simply connect your headphones to the port.
Disconnect the hdmi cable from the tv and move it to an alternate port.
Continue with the instructions from the previous paragraph starting with step 4.
Or if your tv supports hdmi consumer electronics control hdmi cec you can also connect an hdmi cec.
Plug the device back in and power the device back on.
The firestick logo should appear on your tv.
Plug in the power plugs on your tv and firestick.
Set your tv s input mode to av1 or another that matches the port you re using.
On the firestick device you ll see two ports a micro usb and an hdmi.
For lg bluetooth headsets follow the sound setting instructions below except choose lg soundsync wireless as the sound out device.
The micro usb port is used for power supply.
Physically connecting the device.
First you should physically connect your firestick to the lg smart tv and the power source.