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Huawei ME909u-521 Disconnecting the Dial-up Connection, Troubleshooting, Reference Process, Issue

Models: ME909u-521

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

4.2.2Troubleshooting

None

4.3 Disconnecting the Dial-up Connection

4.3.1 Reference Process

Command	Description

AT^NDISDUP=1,0	Disconnect the dial-up connection.

OK	The command is successfully executed.
^NDISSTAT:0,,,"IPV4"	IPv4 changes from the connected state to
	the disconnected state.

4.3.2 Troubleshooting

None

Issue 01 (2013-07-05)	Huawei Proprietary and Confidential	23
	Copyright © Huawei Technologies Co., Ltd.

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Huawei ME909u-521 manual Disconnecting the Dial-up Connection, Troubleshooting, Reference Process, Application Guide, Issue

Contents

HUAWEI ME909u-521 LTE LGA Module Application GuideImport and Export Regulations NO WARRANTYTrademarks and Permissions 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 ConventionsMobile equipment 1.2 Organization of This DocumentApplication 1.3.1 Ports 1.3 Basic AT Command Processing Principles1.3.2 AT Command Processing Mechanism 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+COPS=1,2,23415 OK AT CommandTimeout Duration 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 SYSSTART2.2.1 Reference Process 2.2.2 Troubleshooting2.2 Querying Basic Information 2.3.1 Reference Process 2.3 Network Service OperationsApplication Guide 2.3.2 TroubleshootingIssue HUAWEI ME909u-521 LTE LGA Module3.1.1 Reference Process 3 Network Searching and Registration Application Scenarios3.1 Searching and Registering Network Network Searching and Registration Application Enable automatic search for networks. AT+COPS=0Issue HUAWEI ME909u-521 LTE LGA ModuleScenario 3.1.2 TroubleshootingPossible Error Solution4.1.1 Reference Process 4 ECM Application Scenarios4.1 ECM Dialing 4.2.1 Reference Process 4.1.2 Troubleshooting4.2 Querying the Dial-up Connection State 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 Guide5.3.1 Reference Process 5.2.2 Troubleshooting5.3 Sending Short Message HUAWEI ME909u-521 LTE LGA Module Send a PDU message with the wrong service center addressThe message is successfully sent The message is unsuccessfully sent0891683108608805F931000B 813109731147F40000FF04F4 F29C0Ectrl-Z 5.3.2 Troubleshooting0031000B813109731147F4 0000FF04F4F29C0E ESC 5.4.1 Reference Process 5.4 Reading Short MessagesAll messages 5.5.1 Reference Process 5.4.2 Troubleshooting5.5 Deleting Short Messages index 5.5.2 Troubleshootinginvalid memory 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 Entries6.5.1 Reference Process 6.4.2 Troubleshooting6.5 Querying User Number 6.6.1 Reference Process 6.6 Setting the TEs Character Sets6.5.2 Troubleshooting 1,0123456789,129,004800550041 6.6.2 TroubleshootingAT+CPBR=1 +CPBR7.1.1 Reference Process 7 SIM Operation Application Scenarios7.1 PIN Operations  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-upHS Device WAKEUPOUT Waking up the HostHS Hub 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 Issue11.2 Acronyms and Abbreviations 11 Appendix11.1 Relative Documents IMEI