Multitech MTA128ST-USB Podręcznik Użytkownika Pobierz pdf (Strona 72)

MultiMobile

USB

User Guide

Appendix F: Upgrading the Modem

Introduction

Your modem is controlled by semi-permanent software, called

firmware

, which is stored in flash

memory. Firmware is nonvolatile; that is, it remains stored in memory when the modem is turned off.

However, it can be changed by either the manufacturer or the user as bugs are fixed or new features

are added.

Since the firmware in your modem is stored in flash memory, you can upgrade it yourself in a few

minutes by using the following procedures and Multi-Tech’s Flash Wizard program.

Upgrade Overview

The upgrade procedure consists of the following steps, which are described in greater detail in the

following sections.

1. Identify the model number and firmware version of your modem.

2. Identify the current version of the firmware at the Multi-Tech Web site. If your modem

already has the current firmware, there is no need to update it.

3. Download the upgrade file for your modem.

4. Extract the firmware .HEX file and the appropriate flash upgrade program from the file

you downloaded.

5. Document and clear your stored parameters.

6. Upgrade the modem’s firmware using the .HEX file and the flash upgrade program.

7. Restore your parameters.

Step 1: Identify the Modem Firmware

You must know the model number and firmware version of your Multi-Tech modem to know whether

or not you should update it.

1. Run your favorite terminal program. You can use HyperTerminal for Windows 95, 98,

ME, 2000 or Windows NT.

2. In the program’s terminal window, type AT&F. Even if you cannot see the AT&F

command on your screen, be sure to type it completely, and then press ENTER. If the

modem does not respond with

, repeat the AT&F command.

3. Now type ATI3 and record your results. The firmware version should appear first in the

response, which should look similar to the following:

V2.300G-V90_2M_DLS

Step 2: Identify the Current Firmware Version

Identify the current version of the firmware at the Multi-Tech Web site. If your modem already has the

current firmware, there is no need to update it.

1. Using your favorite Web browser, go to http://www.multitech.com/support/MultiMobileUSB/

firmware.asp.

2. Scroll down the table to your modem model number.

3. Look at the firmware version number for your modem.

4. If the firmware version number matches the number found in “Step 1: Identify the Modem

Firmware,” your modem has the current firmware version, and does not need to be

updated.

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