Hey, you opened it already.
So you can disable it, by a little flip-switch on the voltage supply line (one of the red wires).
But sniffing the communication data could also be interesting.
Also you can drill some 3mm holes around the center top of the case for better ventilation.
The system has limited space free on root, so you cannot install software there.
I did not build coreelec, but i think the extra needed software should be applied to the image at build time.
Since i also have a raspberry pi3 with Raspbian 11 bullseye, i can copy the program stty from there:
just bought one off the famous china website for cheap stuff…alixxx
special offer on, just started today…$42.13 delivered to frogland, 10 day delivery…fingers crossed
I tried now CoreELEC-Amlogic-ne.aarch64-21.0-Omega_nightly_20230830-Generic.img.gz on this box from USB-stick.
It also says “missing partition super, no media playback possible”.
But since it is 64-bit userland, i could now run geekbench5 & 6. Maybe interesting results: