MultiModemBA User Guide
5.If the firmware version number is greater than the firmware version number found in “Step 1: Identify
the Modem Firmware,” your modem has an older firmware version. Continue with “Step 3: Download the Upgrade File.”
Warning: The first digit of the new firmware must match the first digit of the old firmware, or the modem may not work properly. E.g., if your current firmware version is 4.16, replace it only with 4.xx firmware, not 6.xx firmware.
Step 3: Download the Upgrade File
1.If you are not already at the MultiModem’s Firmware page of the
2.Download the upgrade file for your modem by clicking its name, and save the file in a temporary folder on your hard disk.
3.In the same section of the Web page, click the Flash Wizard utility for your operating system to download it, and save it in the same folder.
Step 4: Extract the Upgrade Files
1.Install the Flash Wizard utility by
2.Extract the upgrade files by
3.Copy the upgrade .HEX file into the Flash Wizard folder, which, in a default installation, is at C:\Program Files\MultiTech Systems\Flash Wizard\.
Step 5: Clear Your Stored Parameters
Before you flash your modem, you should record the parameters that are currently stored in it, so you can reprogram it after flashing. After you have recorded them, send the AT&W1Z command to the modem to clear the stored parameters.
1.Run your favorite terminal program. If you are using Windows 95 or above, you can use Windows HyperTerminal.
2.In the program’s terminal window, type AT&V and press ENTER to list your modem’s current parameters.
3.Record your parameters by saving the screens and sending them to your printer.
4.Type AT&W1Z and press ENTER to clear your stored parameters and reset your modem to factory default.
5.Close the terminal program.
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