@robert-hh Hey Robert, Big thanks for all those ideas!!. I have completed upgrade in Win 7 so definetily WiPy is OK. I am executing "dialog" with superuser terminal, however I am not sure if udev might cause the issue, my Linux knowledge is not that deep. exciting to dig on udev rules as well mate!! Note: I will give a go to use the picocom a go, so as to learn more Cheers again ColombianAus