I updated to 2.1.5 via USB.
firmware 2.1.2 (direct flash using USBTiny) has the same issue, that is why I updated to 2.1.5, so I don’t think it is firmware issue.
for second question, I connected a light bulb, I have a OSPi around, when the station is on, the light bulb is on, but the light bulb stays OFF in my OS.
Could the IO port being damaged? I can borrow a O’scape, how to use it to debug the problem?
also is there a simple HEX just test the LCD?
thanks