I tested recently the latest HBO GO EU apps on Z10. The latest version of the apk, version number 5.8.3 is not working properly, it is not discovering a working internet connection. I tried then several older versions (you may find these on apkmirror) with the following results: - version 5.3 is working, but not displaying the content on the TV connected to the Z10 unit. Strangely, it is casting correctly on a different TV though. - versions 5.4.2 and 5.6.2 both work correctly on the Z10. I also installed from Google Play the latest version of the Digital Concert Hall Android application, it works flawlessly. Hope it helps!