Flashing The Firmware - US Robotics USR4204 User Manual

Flashing the firmware

The USR4204 uses two pieces of flash memory for its operation – boot code and system
code. Flashing the firmware replaces the system code.
Before flashing, the firmware file must already be downloaded from the USR4204 support
webpage to a hard drive accessible from the management terminal. Note the location of
the file. Also, be sure to note how to send files with the terminal application being
used. Read all steps for flashing the firmware before you begin.
Step 1: Choose the Flash New Code command ('!') from the Configure Parameters Menu to
put the USR4204 into Boot Mode.
Step 2: At the "Are you sure?" prompt, type 'Y'.
NOTE: To abort or to exit Boot Mode without flashing, type '!' at the Boot>
prompt. The USR4204 restarts and goes to Main Menu (or Login screen if
security is on).
WARNING: Step 3 erases system code. The system will no
longer be operational until firmware is uploaded.
Step 3: Type '#$%' at the Boot> prompt. "Please wait" will appear while the system code
is erased. When complete, "LOAD HEX FILE" appears. The USR4204 is now in file receive
mode.
NOTE: File upload must be started within 30 seconds or you will be returned
to the Boot> prompt. To continue the upload process from the Boot>
prompt, repeat step 3.
Step 4: Use an application (HyperTerminal, ProComm Plus, etc.) to send the .hex file (in
ASCII) to the USR4204. The process will take about 30 seconds. When complete, the
USR4204 restarts and goes to Main Menu (or Login screen if security is on).
If upload is interrupted or the file is corrupt, the USR4204 will return to the
Boot> prompt. Check the Troubleshooting Section for possible causes.
USR4204 User Guide
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