I wonder what SoC these are running? Quite a few of them actually end up configured to preference SD boot over internal flash and/or have easily accessible but

I wonder what SoC these are running? Quite a few of them actually end up configured to preference SD boot over internal flash and/or have easily accessible buttons or shortable pads to trigger bootrom recovery modes. Which at least, stops them being automatically consigned to e-waste. Although, customising a LibreELEC image for the dozens of different models of TV box isn't great. Typically involves sorting out the dts for the device and remapping the remote.