User`s manual
Table Of Contents
- 1. Introduction
- 2. Getting Started
- Powering on the W406-LX
- Connecting the W406-LX to a PC
- Configuring the Ethernet Interface
- USB Port for Expansion
- SD Socket for Storage Expansion
- Setting Up the Wireless Module
- Configuring the SIM Card
- Entering the PIN Code
- Verifying the SIM Card Status
- Enabling or Disabling the PIN Code Authentication
- Changing the PIN Code
- Unlocking the SIM Card
- Connecting to the Internet
- Reconnecting to the Internet
- Disconnecting from the Internet
- Detecting an Internet Connection Error
- Sending and Reading an SMS Message
- Deleting an SMS Message
- Test Program—Developing Hello.c
- 3. Managing Embedded Linux
- 4. Managing Communications
- 5. Development Tool Chains
- 6. Programmer’s Guide
- 7. Software Lock
- A. System Commands

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Chapter 3 Managing Embedded Linux
This chapter includes information about version control, deployment, updates, and peripherals.
The information in this chapter will be particularly useful when you need to run the same
application on several W406-LX units.
The following topics are covered in this chapter:
System Version Information
¾ Upgrading the Firmware
¾ Loading Factory Defaults
Enabling and Disabling Daemons
Setting the Run-Level
Adjusting the System Time
¾ Setting the Time Manually
¾ NTP Client
¾ Updating the Time Automatically
Cron—Daemon to Execute Scheduled Commands