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I am trying to send AT commands to the modem to keep the modem always active. I tried the File > Examples > MKRNB > Tools > SerialSarapassThrough example, but that gave me a +CME ERROR: operation not supported. Here is the output for the commands I sent via serial monitor:

AT
OK
AT+UPSV=0
+CME ERROR: operation not supported

Is there a built in code or any other code which I could use to send that command?

Dave
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1 Answers1

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You have to try SerialSARAPassthrough.ino from examples menu under MKRNB. If it works properly, you can start writing AT in serial monitor line. You must see answer as OK. Then you can look at the u-blox commands document that is shared above

Fatih
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