Hello, I have encountered this issue on two separate and new UDOO x86 Ultras so I don't believe it is from board damage. When I set GPIO pins, for example GPIO 344 which is physical pin 26, as outputs I am unable to get them to change states from 0 to 1. The voltage at the pin just sits at 3.3V. I am setting up the pin using the process: Code: echo 344 > /sys/class/gpio/export echo out > /sys/class/gpio/gpio344/direction echo 0 > /sys/class/gpio/gpio344/value I don't know if there is something I have to install or configure before I am able to do this, but it seems like everything should come preinstalled. I have already checked in the UEFI BIOS and assured that the LPC Buss is disabled so that the pins I am trying to use function as GPIO pins.