At some point I might dig my noise deep into this code and try to make it do at least what the OG firmware does.

https://github.com/Times-Z/GeekMagic-Open-Firmware

It's also not helpfull that the official GeekMagic Store does not state which chip is build in which device and sometimes not even which one is which.
Their github gives it away, but with closed source code.

#GeekMagic #SmallTV #Ultra #SmallTVUltra
GitHub - Times-Z/GeekMagic-Open-Firmware: This repo provide a open source firmware for Geekmagic things

This repo provide a open source firmware for Geekmagic things - Times-Z/GeekMagic-Open-Firmware

GitHub