GPIO 4 does not work

  • ter gx 110s

    the GPIO 4 didn't show any function. Comparison with other devices had shown that the two jumper next to the RJ11 jack were missing.

    Curiously enough the GPIOs 5,6 and 7 did work.

    The Software and the GM862 did also work, I chekct the levels at the labled soldering pads on the PCB, while I was accessing the GPIOS.

    Please provide information about the jumper settings.

    I'm also interestet about the colour dots on the bottom side of the housing, what do they say. By now I've spotted blue, yellow and purple. If it's your Quality control, it's been two "purple" devices with missing jumper.