User Manual

The Telit Modules firmware is updated through the Serial Interface normally used for the AT
Commands.
It is suggested to provide an RS232 interface on the User Printed Circuit Board (where the
Telit Module is soldered) to perform the physical connection between the Telit module and a
Windows-based PC. That simple circuitry makes the firmware updating easy when a new
firmware version is released.
During the User Application development or evaluation phase of the Telit module, the
RS232 interface or the USB port implemented on the Telit Evaluation Kit (EVK2) [6] can
be used to connect the Telit module to a Windows-based PC on which a dedicated tool for
firmware updating is running.
Telit provides the User with two tools to update the firmware of the module. The following
paragraphs describe them.
GT terminals are complete encased modems. They do not need the Telit Evaluation Kit
(EVK2) to perform testing, evaluation and Firmware Update.
The firmware update can be done with a specific software tool provided by Telit that runs on
Windows based PCs.
First the program will erase the content of flash memory, and then the program will write on
the flash memory. To update the firmware of the module, we suggest the following procedure:
 Run the file TFI_xxxx.exe. The following window must be displayed, select the
language preferred by pressing the correspondent button.
 The End User License Agreement will appear. Please, read it and accept the terms
if you are going to proceed.