As mentioned on the LTE modem firmware update page: https://docs.pycom.io/updatefirmware/ltemodem/ the 5.2-48829 update is a two-step process. You'll first need to load file 1, and then file 2: https://docs.pycom.io/updatefirmware/ltemodem/#note-on-updating-to-cat-m1-52-48829 :)
Both the Fipy and GPy support NB-IoT, so that should not be the issue. From the variables still remaining, It does help to update the LTE modem and pycom firmware to the latest version, and there's some additional things mentioned in the original topic you can find in the first post.
@delta said in Cannot connect to Pygate:
problem fixed when I unselected the pybytes option and re-flashed the latest firmware
A little bit off-topic regarding your actual initial problem, but:
I could not connect my LoPy4 device to the Pygate gateway on TTN. I flashed the Pygate with Pybytes disabled, and now the LoPy4 successfully joined the LoRaWAN network held by the Pygate.
Thanks for the input!
I have found this project on github that aims to resolve this kind of issue.
I wonder if Pycom might contribute to it, to enable pukka linting of code in Atom/Pymakr.
I would not recommend powering through Vin with a battery and USB at the same time. As the 5V from the USB will start charging your battery connected on Vin. When connecting to the battery terminal, there is a detection circuit that switches the power source of Vin between USB and battery to not put 5V on the battery lines.