Original post by: Babette Uno ,
Try to follow these are the steps which is given by amzon firestick support guys * Restart your Fire TV device. * Use the connection equipment that came with your device. * Turn on any A/V receivers or sound bars connected to your Fire TV device and switch them to the correct input. Or connect your Fire TV device directly to the television. * Disconnect the Fire TV device from the HDMI port then plug it back in. * Try replacing your HDMI cable or HDMI hub (not included) with a new one. * Use a High-Speed HDMI cable (not included) for streaming titles in 4K Ultra HD. * Match your remote's source or input button to the HDMI port that your Fire TV is plugged into.