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Appendix C – Upgrading your Modem
Multi-Tech Systems, Inc. MT9234ZPX User Guide 57
Step3:DownloadtheUpgradeFile
1. If you are not already at the MultiModem Firmware page of the Multi-Tech Web site, follow the procedure in
“Step 2: Identify the Current Firmware.”
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, download the Flash Wizard utility by clicking it, and save it in the
same folder. Alternately, install the Flash wizard from the MultiModem compact disc.
Step4:ExtracttheUpgradeFiles
1. Install the Flash Wizard utility by double-clicking the Flash Wizard file name in Windows Explorer.
2. Extract the upgrade files by double-clicking the file name. The extracted files include a .HEX file, which
contains the upgrade data, and a Readme file.
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\.
Step5:DocumentandClearYourStoredParamenters
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 the modem to clear
the stored parameters.
1. Run your favorite terminal program.
2. In the program’s terminal window, type AT&V and press E
NTER 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 E
NTER to clear your stored parameters and reset your modem to factory default.
5. Close the terminal program.
Step6:UpgradetheModem’sFirmware
Before you begin the following procedure, read the README.TXT file extracted from the upgrade archive file. Note
the file name for the new firmware (example: ARQG125A.HEX). Also, if you are using Windows NT, you must
disable Windows RAS and Microsoft Fax Service before upgrading the modem’s firmware. To disable RAS and
your Fax service, Click Start | Settings | Control Panel, and then double-click Services. Select Remote Access
Server, and then click the Startup button. Select Manual as the startup type, and then click OK. Do the same for
any fax service. Close any other programs that might be accessing the modem’s Com Port.
WARNING: Never install an older version of firmware over a newer version. Doing this WILL DESTROY THE
FLASH PROM! If the flash PROM is destroyed, the modem must be sent in for repair.
1. Run Flash Wizard by double-clicking its icon or file name, or by selecting it from the Start menu. The
program begins by identifying devices attached to your computer.
2. Select the modem to be upgraded, and then click Next to proceed.
3. Select the port to be upgraded from the Port list, select the appropriate .HEX file from the Hex File list, and
then click Next to continue.
Note: Do not use FLASHLDR.HEX. This file is used internally by Flash Wizard.
4. The Progress dialog box now displays the progress of the upgrade.
Caution: Any disruption of the program during this stage of the upgrade can cause your modem to become
inoperable. Wait for the Next button to become active before proceeding.
5. When the flash upgrade is complete, the message Programming Complete appears. Click Next to
continue.
6. The Results dialog box appears next. Click Finish to exit Flash Wizard.
Note: If you are using Windows NT, be certain to enable RAS and your fax service when the operating system
restarts.
Step7:RestoreYourParameters
Your modem has been upgrade. You can now open your terminal program to reprogram your modem parameters
or to confirm the upgrade by typing ATI in the terminal window and pressing E
NTER.