Hi All, We have a Q2698 running in a system, where it happily was connected to the Telstra 3G network for a number of days. Suddenly, it dropped offline and upon further inspection, the only service provider it can see (via AT+COPS=?) is a Vodafone 2G GSM service. A second identical system returns …

Q2698 Suddenly can't connect to 3G networks (GSM only)

cloud_huang August 31, 2017, 1:47am 3

you can check below AT commands to see the modem status:
AT!GSTATUS?
AT+WOPEN?
AT!MAPUART?

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