How to extract update files from android tv box?

[aous92]

I have two identical Android TV boxes, Android 7.1.2 and Android 8.0.

We do not support update at this time, so we cannot update 7.1.2 devices.

I would like to know how to create an update file with an 8.0 device.

I heard that someone else updated it that way.


And if there is an Android 9.0 firmware file for hk101 device of now e, please send it.