I have tried to hide both the software.ota and software.ota.override using adb.
adb connect 192.168.x.xThe only way I know to test is by checking for updates and the Fire TV able to verify that it was on the latest version. It did not error out.
adb pm hide com.amazon.device.software.ota.override
adb pm hide com.amazon.device.software.ota
Am I doing this wrong? It is possible to block OTA on Fire TV 2 and to verify that they are blocked?