I just made a mistake with the pins, the one I needed to not change were G12, G13 and G14 and not like mentionned above. I'm still interested if I could use those Pins for input and then somehow deinit so that the communication still works.

Hi everyone. I want to tell you that I have already solved the problem. There is a conflict with the line in which I declare a Pin as output and the moment in which it is transmitted: Pin('P5', mode=Pin.OUT, value=1) What I did was change the pin to P13, this ended the problem and I was able to transmit without any inconvenience and see the data in the Sigfox Backend.: Pin('P13', mode=Pin.OUT, value=1)