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HUAWEI ME909u-521 LTE LGA Module
Application Guide
Initialization Application Scenarios
Issue 01 (2013-07-05)
Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
15
2.2 Querying Basic Information
2.2.1 Reference Process
Command
Description
AT+GMR/CGMR
Query software version.
Software version
OK
Software version. e.g. 11.103.03.00.00
AT+GMI/CGMI
Query manufacturer identification.
Manufacturer
Identification
OK
For example: Huawei Technologies Co., Ltd.
AT+GMM/CGMM
Query model identification.
Model identification
OK
For example: ME909u-521
AT+GSN/CGSN
Query product IMEI.
IMEI
OK
For example: 865261010004010
Note:
The previously listed commands are Query commands and cannot be used to configure
settings.
2.2.2 Troubleshooting
Scenario
Possible Error
Information
Solution
AT+GSN/CGSN
+CME ERROR: memory
failure
This error occurs when a
module's IMEI is not specified.
This problem is solved after
the IMEI is written into the
module.