I hold down the tv and source button on my Bt350 remote and get the solid red light.

I push the volume up button on my BT350 and get the blinking red light.

I point the two remotes together within 1" or less between them.

I hold down on the volume up button on my Fire TV remote but never receive a solid red light on the BT350 to indicate it was programed.

Am I doing something wrong?