Hello, I got several of these for an IoT project, that worked fine. They were V1.0, however, I purchased a few more of these V1.3.0 and they do not communicate via serial. These are being used in an odd manner, they are not on a raspberry pi. But V1.0 worked just fine. Is there a log of changes made?
In other news, is it possible to send these back? I accidentally selected the Verizon network.
Thanks in advance!