芯片上电正常,使用的移动NB卡,网络也通了,可是使用MQTT相关命令后一直返回ERROR
ATI
Quectel_Ltd
Quectel_BC260Y-CN
Revision: BC260YCNAAR01A03
AT+QENG=0
+QENG: 0,3684,11,272,“044E4F40”,-120,-16,5,-1,8,27753,0,-128,3
+QENG: 1,3684,60,-113,-10
+QENG: 1,3686,295,-122,-16
+QENG: 1,3688,246,-124,-19
+QENG: 1,3686,256,-129,-20
AT+QENG=3
+QENG: 4,“REG”,“IDLE”,“SELECTED”,“EHPLMN”,“0x460,0xf000”