Manuals / Huawei / Kitchen Appliance / Refrigerator

Huawei ME909u-521 manual Querying Basic Information, Reference Process, Troubleshooting

Models: ME909u-521

1 67

Page 15

HUAWEI ME909u-521 LTE LGA Module
Application Guide	Initialization Application Scenarios

2.2 Querying Basic Information

2.2.1 Reference Process

Command	Description

AT+GMR/CGMR	Query software version.

Software version	Software version. e.g. 11.103.03.00.00
OK

AT+GMI/CGMI	Query manufacturer identification.

Manufacturer	For example: Huawei Technologies Co., Ltd.
Identification
OK

AT+GMM/CGMM	Query model identification.

Model identification	For example: ME909u-521
OK

AT+GSN/CGSN	Query product IMEI.

IMEI	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	Solution
	Possible Error
	Information
	Information

		This error occurs when a
	+CME ERROR: memory	module's IMEI is not specified.
AT+GSN/CGSN	+CME ERROR: memory	This problem is solved after
AT+GSN/CGSN	failure	This problem is solved after
	failure	the IMEI is written into the
		the IMEI is written into the
		module.

Issue 01 (2013-07-05)	Huawei Proprietary and Confidential	15
	Copyright © Huawei Technologies Co., Ltd.

Page 15

Image 15

Huawei ME909u-521 manual Querying Basic Information, Reference Process, Troubleshooting

Contents

HUAWEI ME909u-521 LTE LGA Module Application GuideNO WARRANTY Trademarks and PermissionsImport and Export Regulations HUAWEI ME909u-521 LTE LGA Module About This DocumentRevision History Issue4 ECM Application Scenarios Contents2 Initialization Application Scenarios 3 Network Searching and Registration Application Scenarios7 SIM Operation Application Scenarios 5 SMS Application ScenariosHUAWEI ME909u-521 LTE LGA Module Contents10 Module Powering Off and Resetting Application Scenarios Issue1.1.2 Definitions 1 Overview1.1 Conventions and Definitions 1.1.1 Conventions1.2 Organization of This Document ApplicationMobile equipment 1.3 Basic AT Command Processing Principles 1.3.2 AT Command Processing Mechanism1.3.1 Ports HUAWEI ME909u-521 LTE LGA Module Return results of AT commandReturn results of AT command Issue 01HUAWEI ME909u-521 LTE LGA Module All AT commands entered duringAll AT commands entered IssueAT Command Timeout DurationAT+COPS=1,2,23415 OK 2. If the module returns failure information, go to step 2.1.1 Reference Process 2.1.2 Troubleshooting2 Initialization Application Scenarios 2.1 Startup Indication SYSSTART2.2.2 Troubleshooting 2.2 Querying Basic Information2.2.1 Reference Process 2.3.1 Reference Process 2.3 Network Service OperationsApplication Guide 2.3.2 TroubleshootingIssue HUAWEI ME909u-521 LTE LGA Module3 Network Searching and Registration Application Scenarios 3.1 Searching and Registering Network3.1.1 Reference Process Network Searching and Registration Application Enable automatic search for networks. AT+COPS=0Issue HUAWEI ME909u-521 LTE LGA ModuleScenario 3.1.2 TroubleshootingPossible Error Solution4 ECM Application Scenarios 4.1 ECM Dialing4.1.1 Reference Process 4.1.2 Troubleshooting 4.2 Querying the Dial-up Connection State4.2.1 Reference Process 4.3.1 Reference Process 4.3 Disconnecting the Dial-up Connection4.2.2 Troubleshooting 4.3.2 Troubleshooting5.1 Overview 5 SMS Application ScenariosSMS initialization Figure 5-1 Example of data encoded in PDU format of submitted typeFigure‎ 5-2 shows the general SMS process Figure 5-2 General SMS process5.2.1 Reference Process 5.2 Initializing SMSSet the short message format to PDU SMS Application Scenarios IssueHUAWEI ME909u-521 LTE LGA Module Application Guide5.2.2 Troubleshooting 5.3 Sending Short Message5.3.1 Reference Process HUAWEI ME909u-521 LTE LGA Module Send a PDU message with the wrong service center addressThe message is successfully sent The message is unsuccessfully sent5.3.2 Troubleshooting 0031000B813109731147F4 0000FF04F4F29C0E ESC0891683108608805F931000B 813109731147F40000FF04F4 F29C0Ectrl-Z 5.4.1 Reference Process 5.4 Reading Short MessagesAll messages 5.4.2 Troubleshooting 5.5 Deleting Short Messages5.5.1 Reference Process 5.5.2 Troubleshooting invalid memoryindex 6.2.1 Reference Process 6 Phonebook Application Scenarios6.1 Overview 6.2 Memory OperationsQuery the current phonebook storage AT+CPBS? +CPBS“ON”,0,0 OK 6.2.2 TroubleshootingInitializing the phonebook Start Query the available storage types for the phonebook AT+CPBS=? +CPBS“SM”,‎“EN”,“ON” OK6.3.1 Reference Process 6.3 Reading Phonebook EntriesInitialize the phonebook 6.3.2 Troubleshooting6.3.3 Writing/Deleting Phonebook Entries 6.3.4 Reference Process 6.3.5 Troubleshooting 6.4.1 Reference Process 6.4 Searching for Phonebook Entries6.4.2 Troubleshooting 6.5 Querying User Number6.5.1 Reference Process 6.6 Setting the TEs Character Sets 6.5.2 Troubleshooting6.6.1 Reference Process 1,0123456789,129,004800550041 6.6.2 TroubleshootingAT+CPBR=1 +CPBR7 SIM Operation Application Scenarios 7.1 PIN Operations7.1.1 Reference Process  Either CPIN or +CPIN can be used to authenticate the PIN 7.1.2 Troubleshooting7.2.1 Reference Process 7.2 CRSM Command If pathid is not contained in the command, the module will prefer to access the files with the same FID in the current directory Scenario 7.2.2 TroubleshootingPossible Error Solution8 Sleeping and Waking Up Application Scenarios Pin name 8.1 Hardware InterfacesDiagram InterfaceApplication Guide 8.2 Sequence DiagramIssue 01 HUAWEI ME909u-521 LTE LGA Module8.3.1 Principle 8.3 Software InterfacesFigure 8-5 Currency state when the module is in sleep mode 8.3.2 USB and Sleep 8.3.5 Host Woken up by Module Remotely Waking up the Host Using USB8.3.3 UART and Sleep 8.3.4 Module Wake-upWAKEUPOUT Waking up the Host HS HubHS Device 8.4.1 Hardware Connection 8.4.2 Software ProcedureRemote Wake-up Configuration 8.4 Application Scenarios System with USB Connection only8.5.1 Hardware Connection 8.5.2 Software Procedure8.5 Application Scenarios System with USB and WAKEUPOUT 8.4.3 Advantages8.5.3 Advantages 8.6 System with Other Connection Methods9.2 Thermal Protection Process 9.1 Pre-configuration9.1.1 Troubleshooting 9 Thermal Protection Application ScenariosThermal Protection Application Scenarios IssueHUAWEI ME909u-521 LTE LGA Module Application Guide10.1 Restarting the ME 10 Module Powering Off and Resetting Application Scenarios10.2 Power Off ME 10.1.2 TroubleshootingHUAWEI ME909u-521 LTE LGA Module 10.2.2 TroubleshootingModule Powering Off and Resetting Application Issue11 Appendix 11.1 Relative Documents11.2 Acronyms and Abbreviations IMEI