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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.
29
Figure 5-5 SMS initialization process – part 3
End
OK
AT+CMGF=0
AT+CMGF?
*
+CMGF:0
OK
5.2.2 Troubleshooting
Scenario
Possible Error
Information
Solution
Error information is
returned in response to
one of the previous
commands.
+CME ERROR: SIM
PIN required
Enter the correct PIN.
+CMS ERROR: SIM
busy
SIM card initialization has not
completed. Try again later.
5.3 Sending Short Message
5.3.1 Reference Process
Command
Description
AT+CMGF=0
Set the short message format to PDU.
OK
AT+CSCA?
Query the SMSC address.
+CSCA: "13800688509",129
OK
AT+CMGS=18
Send a PDU message without the service center