Store and Voice input will be lost.
1, Install Launcher of your choice. ( adb install 123launcher.apk )
2, adb shell su -c "pm disable-user --user 0 com.amazon.tv.launcher"
wait 5 seconds
3, adb shell su -c "pm disable-user --user 0 com.amazon.firehomestarter"
wait 5 seconds
5, adb shell...