@knuxify yes, the green stuff. PBC . . I will look for info in duck du ck go.
@knuxify I know almost nothing about electronics. Where can I start looking about that? I was thiking in use the components of my SM-T210R,the screen, battery, and rest of components and change the board for an Odroid 4. Is complicated or imposible? Because there are already things that work, and change it for something that works could be so useful.
@barz the PCB in the holder? no, it's a test PCB from a soldering training kit