Reading SMS Messages No Longer Works

  • We have just finished our design and PCB layout using the GPy. Everything was working great with v1.20.0.rc8 and modem firmware 39529. I decided to upgrade the modem firmware to 41065 and release candidate v1.20.0.rc9. Now reading SMS messages no longer works.'AT+CMGF=1')'AT+CMGL="REC UNREAD"')    # now returns ERROR response

  • Removing the LTE.reconnect_uart() command that I was using previously to get the iccid() command to work seems to have fixed the problem with reading SMS messages.

    Before I was getting undocumented responses from the modem: +SYSSTART and +SHUTDOWN. These responses do not appear in the Sequans manual that I can find.

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