please look into this thread and my last 2 Postings
https://xdaforums.com/android-tv/chromecast/restoring-cc-eureka-27946-002-to-stock-t3648210
Here you can find also the link to download the needed stock file (only valid for 30 days) and for sure a link to a video
https://xdaforums.com/android-tv/chromecast/restoring-cc-eureka-27946-002-to-stock-t3648210
Here you can find also the link to download the needed stock file (only valid for 30 days) and for sure a link to a video