6 Warranty, Service, and Technical Support
CommPlete Communications Server 65
Upgrading the MT3334HD8 Firmware
The MT3334HD8s firmware is contained in a flash PROM. At various times, Multi-Tech may add
enhancements and/or fixes to this firmware. The flash techn ology used in the MT3334HD8 allows these
upgrades to be loaded directly into the PROM chip through the modems serial port, or through the
backplane when using the management software.
Please refer to the MultiModemManager software manual for instructions on how to update a modems
firmware using the management software.

Using FlashPro to Upgrade Firmware

1. Download FLASHPRO.ZIP and a new .HEX file from the Multi-Tech BBS.
2. Unzip the FLASHPRO.ZIP file. Place this unzipped file and the .HEX file in the same directory.
3. Run FlashPro by typing flashpro and pressing ENTER at the DOS prompt.
4. Highlight the Configure option in the Main Menu, and press ENTER. Highlight Active Port and
select the COM port to which the MT3334HD8 is attached. Highlight Baud Rate and select the rate
you want to program at. Press ESC when finished.
5. Highlight the Select File to Program option in the Main Menu. Highlight the .HEX file. Hit ESC
when finished.
6. Highlight the Program Firmware option in the Main Menu. You are prompted to confirm the file
to program.
7. Return to step 3, if you have not successfully programmed FlashPro, or call Multi-Tech's Technical
Support or BBS.