hai,
An error is occurring when I change the version of the MQTT protocol to 3. the command I used is
.on documents they given that
hello I hope that help… I don’t know which is your TCPConnectID have you try
//AT+QMTCFG="version",<TCPConnectID>,<mqtt_proto_ver>\r
AT+QMTCFG="version",0,3\r
I tried this command which is shown on the 1st picture with CME ERROR 3765 (invalid input value)
I am sorry for insisting but
into the first picture the second param is 1 like this, the change is surrounded by triple *
AT+QMTCFG="version",***1***,3
I said you can try
AT+QMTCFG="version",***0***,3
this is because at previous command
//AT+QMTCFG="ssl",<tcpConnectID>,1,<ctx_index>
AT+QMTCFG="ssl",0,1,2
issue solved.i have used wrong data sheet. command is AT+QMTCFG=“VERSION”,0,1