RAK5010模塊sim卡調試，sim卡位電信卡

  at+set_config=cellular:(AT+QCFG="iotopmode",1,1) AT+QCFG="nwscanmode",3,1 at+set_config=cellular:(AT+QCFG="BAND",0,10,10) at+set_config=cellular:(AT+QENG="SERVINGCELL") at+set_config=cellular:(AT+CO

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