I am trying to send SMS with Digi LTE-M / NB-IoT module. It is working with some modules. But there are problems with newer firmware.
Working module configuration is for example:
XBee LTE-M / NB-IoT firmware 11410 or firmware 11411
Modem firmware L0.0.00.00.05.06 [Feb 03 2018 13:00:41]
With newest firmware 11415 and modem firmware L0.0.00.00.05.08,A.02.04 sending SMS always end up to timeout, also receiving SMS does not work.
All firmware versions can register to network and data connection with TCP is working.
Python code, i tried:
>>> import network
>>> cellular = network.Cellular()
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
OSError: [Errno 7110] ETIMEDOUT
What could be the problem?