User's Manual

Flash Upgrade
H-2 Modem 3600
5) From your terminal software package, send the “flash upgrade
file” to the modem. You know the download is working because
the LCD displays:
FLASH UPGRADE
IN PROGRESS
Note
Be sure you use the “X modem CRC” protocol.
The modem automatically resets after the upgrade is complete. The
process can take several minutes.
One of two messages returns.
DOWNLOAD OK
indicates a successful upgrade.
DOWNLOAD ERROR
indicates a problem with the download.
Enter ATI3 if you want to verify the latest software update.
Troubleshooting
1) You did not choose the correct download protocol.
Response:
Repeat the process.
2) The upgrade flash file is corrupted.
Response:
Get a clean file and redo the steps.
3) If all else fails:
Response:
See the “Calling Technical Support” section on
page 12-2