Hi I have an app designed for Android TV OS that is known and is runing well on Android TV OS I have loaded the APK on Fire OS 7.7.0.2, it installs, it 'runs', but does not OPEN and work correctly, instead displaying source code. I only have the compiled APK, not the source. I believe it MAY be looking for parameters we need to supply it . We may be able to work with the supplier for some clues, but are you able to debug in case we can 'feed' the missing parameters? I can insert the error here exluding the <> in case is seen as PHP/HTML Error Code /Code message Region /Region RequestId /RequestId HostId /Error The APK is a content / video on demand APK and we will be licenced to use it.