Owner`s manual
MultiMobile 79
Chapter 6—Appendix
Appendix C
: Upgrade Procedures
Introduction
Your modem is controlled by semipermanent software called firmware that
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 quickly yourself using the following procedures.
Upgrade Overview
The upgrade procedure consists of the steps below, 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
or BBS. 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 modems 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 you should update it.
1. Run your favorite terminal program. If you are using Windows 95 or
Windows NT, you can use HyperTerminal. If you are using Windows
3.11, you can use Windows Terminal.
2. In the programs 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.