Is it possible tu update from 2.0 fw to 2.0.1 using the settings/upgrade function ?
Yes. I did this but also found it wipes everything still and completely re-installs Android so all settings (video, audio, Samba, even country and time) need to be changed.
It also installs Kodi 17 RC and this needs all default settings changed including Audio so that 7.1 passthrough works ok.
Default is 2.0 and non-passthrough.
There are also tick settings in Kodi to tell it your AVR can handle DTS-MA and TrueHD as well as standard DTS and AC3.