If it’s okay, shortly I will be posting some instructions for booting CoreElec on Skyworth YYC S905X4 devices (and related HP44H Skyworth devices) which include:
Mecool KM2 Plus
Mecool KM2 Plus Deluxe
Boxy
and others.
The primary purpose of the instructions will be to explain a workaround for the “lack of physical reset button” issue. Some further development may be needed in order to achieve full functionality.