I recently acquired my Radxa X4 16GB SBC.
I also connected my Quad SATA HAT board from my Rpi4 to the new Radxa X4.
I had to enable the GPIO ports to activate the SATA ports, and I also activated the fan speed at the default speed, and then used the button to increase the speed.
I’m now trying to activate the OLED display, in case anyone can help me or has tried.