Zidoo updated their Kodi fork to version 18.9
overview has been redesigned to support sticky first column and row highlight for better user experience
With the Z1000 Beta Firmware v2.3.35 Zidoo updated Home Theater to Version v4.0.12
It took me three days to figure out how to create working APKs for the Android 6/7.1 devices based on the Android 9 code from the Z9X firmware v6.0.35.
Update 2020-09-10: Since Zidoo released an update for Z9S with even more current versions of their apps, the use of modded APKs is not necessary for now.