Manuals / Huawei / Kitchen Appliance / Refrigerator

Huawei ME909u-521 manual Troubleshooting, Scenario, Possible Error, Solution, Information

Models: ME909u-521

1 67

Page 20

HUAWEI ME909u-521 LTE LGA Module	Network Searching and Registration Application
Application Guide	Scenarios

Figure 3-2Manual search for networks

Manual search for networks

Start

Enable automatic search for networks. AT+COPS=?

Display the networks found.

Select and register with a network.

AT+COPS=1[,<format>[,<oper>[,<rat>]]]

End

3.1.2Troubleshooting

Scenario	Possible Error	Solution
	Possible Error
	Information
	Information

AT+COPS?	+CME ERROR: SIM	No SIM card is detected. Insert
AT+COPS?	failure	a SIM card.
	failure	a SIM card.

AT+CREG?	+CME ERROR: SIM	No SIM card is detected. Insert
AT+CREG?	failure	a SIM card.
	failure	a SIM card.

Issue 01 (2013-07-05)	Huawei Proprietary and Confidential	20
	Copyright © Huawei Technologies Co., Ltd.

Page 20

Image 20

Huawei ME909u-521 manual Troubleshooting, Scenario, Possible Error, Solution, Information

Contents

Application Guide HUAWEI ME909u-521 LTE LGA ModuleImport and Export Regulations NO WARRANTYTrademarks and Permissions About This Document Revision HistoryIssue HUAWEI ME909u-521 LTE LGA ModuleContents 2 Initialization Application Scenarios3 Network Searching and Registration Application Scenarios 4 ECM Application Scenarios5 SMS Application Scenarios 7 SIM Operation Application ScenariosContents 10 Module Powering Off and Resetting Application ScenariosIssue HUAWEI ME909u-521 LTE LGA Module1 Overview 1.1 Conventions and Definitions1.1.1 Conventions 1.1.2 DefinitionsMobile equipment 1.2 Organization of This DocumentApplication 1.3.1 Ports 1.3 Basic AT Command Processing Principles1.3.2 AT Command Processing Mechanism Return results of AT command Return results of AT commandIssue 01 HUAWEI ME909u-521 LTE LGA ModuleAll AT commands entered during All AT commands enteredIssue HUAWEI ME909u-521 LTE LGA ModuleAT+COPS=1,2,23415 OK AT CommandTimeout Duration 2. If the module returns failure information, go to step 2.1.2 Troubleshooting 2 Initialization Application Scenarios2.1 Startup Indication SYSSTART 2.1.1 Reference Process2.2.1 Reference Process 2.2.2 Troubleshooting2.2 Querying Basic Information 2.3 Network Service Operations 2.3.1 Reference Process2.3.2 Troubleshooting IssueHUAWEI ME909u-521 LTE LGA Module Application Guide3.1.1 Reference Process 3 Network Searching and Registration Application Scenarios3.1 Searching and Registering Network Enable automatic search for networks. AT+COPS=0 IssueHUAWEI ME909u-521 LTE LGA Module Network Searching and Registration Application3.1.2 Troubleshooting Possible ErrorSolution Scenario4.1.1 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 Disconnecting the Dial-up Connection 4.2.2 Troubleshooting4.3.2 Troubleshooting 4.3.1 Reference Process5 SMS Application Scenarios 5.1 OverviewFigure 5-1 Example of data encoded in PDU format of submitted type Figure‎ 5-2 shows the general SMS processFigure 5-2 General SMS process SMS initialization5.2 Initializing SMS 5.2.1 Reference ProcessSet the short message format to PDU Issue HUAWEI ME909u-521 LTE LGA ModuleApplication Guide SMS Application Scenarios5.3.1 Reference Process 5.2.2 Troubleshooting5.3 Sending Short Message Send a PDU message with the wrong service center address The message is successfully sentThe message is unsuccessfully sent HUAWEI ME909u-521 LTE LGA Module0891683108608805F931000B 813109731147F40000FF04F4 F29C0Ectrl-Z 5.3.2 Troubleshooting0031000B813109731147F4 0000FF04F4F29C0E ESC 5.4 Reading Short Messages 5.4.1 Reference ProcessAll messages 5.5.1 Reference Process 5.4.2 Troubleshooting5.5 Deleting Short Messages index 5.5.2 Troubleshootinginvalid memory 6 Phonebook Application Scenarios 6.1 Overview6.2 Memory Operations 6.2.1 Reference Process6.2.2 Troubleshooting Initializing the phonebook Start Query the availablestorage types for the phonebook AT+CPBS=? +CPBS“SM”,‎“EN”,“ON” OK Query the current phonebook storage AT+CPBS? +CPBS“ON”,0,0 OK6.3 Reading Phonebook Entries 6.3.1 Reference Process6.3.2 Troubleshooting Initialize the phonebook6.3.3 Writing/Deleting Phonebook Entries 6.3.4 Reference Process 6.3.5 Troubleshooting 6.4 Searching for Phonebook Entries 6.4.1 Reference Process6.5.1 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 6.6.2 Troubleshooting AT+CPBR=1+CPBR 1,0123456789,129,0048005500417.1.1 Reference Process 7 SIM Operation Application Scenarios7.1 PIN Operations 7.1.2 Troubleshooting  Either CPIN or +CPIN can be used to authenticate the PIN7.2 CRSM Command 7.2.1 Reference Process If pathid is not contained in the command, the module will prefer to access the files with the same FID in the current directory 7.2.2 Troubleshooting Possible ErrorSolution Scenario8 Sleeping and Waking Up Application Scenarios 8.1 Hardware Interfaces DiagramInterface Pin name8.2 Sequence Diagram Issue 01HUAWEI ME909u-521 LTE LGA Module Application Guide8.3 Software Interfaces 8.3.1 PrincipleFigure 8-5 Currency state when the module is in sleep mode 8.3.2 USB and Sleep Remotely Waking up the Host Using USB 8.3.3 UART and Sleep8.3.4 Module Wake-up 8.3.5 Host Woken up by ModuleHS Device WAKEUPOUT Waking up the HostHS Hub 8.4.2 Software Procedure Remote Wake-up Configuration8.4 Application Scenarios System with USB Connection only 8.4.1 Hardware Connection8.5.2 Software Procedure 8.5 Application Scenarios System with USB and WAKEUPOUT8.4.3 Advantages 8.5.1 Hardware Connection8.6 System with Other Connection Methods 8.5.3 Advantages9.1 Pre-configuration 9.1.1 Troubleshooting9 Thermal Protection Application Scenarios 9.2 Thermal Protection ProcessIssue HUAWEI ME909u-521 LTE LGA ModuleApplication Guide Thermal Protection Application Scenarios10 Module Powering Off and Resetting Application Scenarios 10.2 Power Off ME10.1.2 Troubleshooting 10.1 Restarting the ME10.2.2 Troubleshooting Module Powering Off and Resetting ApplicationIssue HUAWEI ME909u-521 LTE LGA Module11.2 Acronyms and Abbreviations 11 Appendix11.1 Relative Documents IMEI