Troubleshooting - Huawei ME909u-523 Application Manual

HUAWEI ME909u-523 LTE LGA Module
Application Guide
Figure 5-7 Reading short messages
List received unread
messages in PDU format

5.4.2 Troubleshooting

Scenario
Error information is
returned in response
to one of the previous
commands.
Issue 04 (2014-12-08)
Reading short messages
Start
AT+CMGL=0
+CMGL:<index1>,0,,<length>
<pdu> (messages in PDU format)
......
+CMGL:<indexn>,0,,<length>
<pdu> (messages in PDU format)
OK
AT+CMGR=n
PDU format
+CMGR:n,,<length>
<pdu> (messages in PDU format)
OK
End
Possible Error
Information
+CMS ERROR: invalid
memory index
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SMS Application Scenarios
Solution
Check the validity of the index.
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