I have been looking to this post:

https://forum.iot.t-mobile.nl/topic/310/sim7000e-accepteert-de-genoemde-commandos-niet?_=1591271570193

I like to have it work with T-mobile NB IoT on a combination of the SparkFun SAMD21 Mini Breakout connection and the SIM7000E break out board.

Is there anybody who has succeeded to do so with Arduino code?

Thanks in advance for your answer.

@Crowdsourcer I don’t know. BQ24195 is pretty solid. Probe it if you need to.

If your device has transmitted data it has "auto registered’ to the main account and can not be claimed by any project account anymore. Everyday at approx. 8 AM devices get cleared again from the main account and can be registered again.