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HUAWEI ME909u-521 LTE LGA Module
Application Guide
SMS Application Scenarios
Issue 01 (2013-07-05)
Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
34
5.4.2 Troubleshooting
Scenario
Possible Error
Information
Solution
Error information is
returned in response
to one of the previous
commands.
+CMS ERROR: invalid
memory index
Check the validity of the index.
5.5 Deleting Short Messages
5.5.1 Reference Process
Command
Description
AT+CMGF=0
Set the message format to PDU mode.
OK
AT+CMGL=4
List all short messages (PDU mode).
+CMGL: 6,2,,30
0011000A917179876213000
0A713C8329BFD6681D0EF
3B282C2F83F2EFFA0F
+CMGL: 11,1,,36
0791947106004013240C919
47159826990000030804131
15748013C8329BFD6681D0
EF3B282C2F83F2EFFA0F
OK
AT+CMGD=1
Delete the message stored in storage location 1.
OK
Either all messages stored in the preferred message storage or a message
stored in the specified storage location in the preferred message storage can be
deleted.
All read or unread messages that have been received can be deleted.
If no messages are stored in the preferred message storage, "OK" is returned
when the action to delete messages is completed.
Meanings of the DelFlag value:
− 1: Delete all read messages in the preferred message storage, and keep the
unread, sent and unsent messages.