Android TV Guide on Twitter: "From Reddit, new FW update available for the Chromecast with #GoogleTV. Applied on mine too. New SDR/HDR options, Wi-Fi stability, CEC, etc. I also triggered this "Select
![Not supported signal. Check output of your device. Help? Already reset the Chromecast : r/Chromecast Not supported signal. Check output of your device. Help? Already reset the Chromecast : r/Chromecast](https://preview.redd.it/not-supported-signal-check-output-of-your-device-help-v0-cb01orstya981.jpg?auto=webp&s=1266590fd34c2032b738dd6d18083fd7269e28e7)
Not supported signal. Check output of your device. Help? Already reset the Chromecast : r/Chromecast
![Amazon.com: Google Chromecast - Streaming Device with HDMI Cable - Stream Shows, Music, Photos, and Sports from Your Phone to Your TV : Electronics Amazon.com: Google Chromecast - Streaming Device with HDMI Cable - Stream Shows, Music, Photos, and Sports from Your Phone to Your TV : Electronics](https://m.media-amazon.com/images/I/81rOtfzI0QL._AC_UF1000,1000_QL80_.jpg)