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30 MultiModem ZPX User Guide
Appendix B - Updating the Modems
Firmware
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,
either the manufacturer or the user can change the firmware as bugs are fixed or new features are added.
Multi-Tech System’s Flash Wizard utility can be used in the Windows operating system to update (flash)
your modems firmware. Download the Flash Wizard from the Multi-Tech Systems Installation
Resources Website: www.multitech.com/setup/product.go.
Upgrade Overview
The upgrade (flash) procedure for the Windows operating system consists of the following steps:
1. Identify the modem’s model number and firmware version.
2. Identify the current version of the firmware.
3. Download the upgrade (.HEX) file for your modem.
4. Extract the firmware upgrade (.HEX) file.
5. Install The Flash Wizard.
6. Document your stored parameters.
7. Upgrade the modem’s firmware using the .HEX file and the Flash Wizard.
8. 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
you should update it.
1. Run your favorite terminal program. If you are using Windows 98, Windows NT, or Windows
2000, you can use HyperTerminal.
2. In the program’s terminal window, type AT&F and press Enter. Even if you cannot see the
AT&F command on your screen, be sure to type it completely. The modem should respond
OK.
3. After the modem responds OK, type ATI and press Enter. Record your results. The model
number and firmware version should appear.
Step 2: Identify the Current Firmware Version
Identify the current version of the firmware available for your modem on the Multi-Tech web site. If
your modem already has the current firmware, there is no need to update it.
Appendix B - Updating the Modem’s Firmware
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