Recovering The Firmware; Figure 297 Example Xmodem Upload - ZyXEL Communications IES-612-51A User Manual

55.16 Recovering the Firmware

Usually you should use FTP or the web configurator to upload the IES-612-51A's firmware. If
the IES-612-51A will not start up, the firmware may be lost or corrupted. Use the following
procedure to upload firmware to the IES-612-51A only when you are unable to upload
firmware through FTP.
This procedure is for emergency situations only.
1 Obtain the firmware file, unzip it and save it in a folder on your computer.
2 Connect your computer to the console port and use terminal emulation software
configured to the following parameters:
• VT100 terminal emulation
• 9600 bps
• No parity, 8 data bits, 1 stop bit
• No flow control
3 Turn off the IES-612-51A and turn it back on to restart it and begin a session.
4 When you see the message
seconds
5 Type
atba5
speed to 115200 bps).
6 Change the configuration of your terminal emulation software to use 115200 bps and
reconnect to the IES-612-51A.
7 Type
atur
8 Wait for the
on your terminal.
9 This is an example Xmodem configuration upload using HyperTerminal. Click
Transfer, then Send File to display the following screen.

Figure 297 Example Xmodem Upload

Type the firmware file's location, or click Browse to search for it. Choose the 1K
Xmodem protocol. Then click Send.
10 After a successful firmware upload, type atgo to restart the IES-612-51A. The console
port speed automatically changes back to 9600 bps when the IES-612-51A restarts.
IES-612-51A User's Guide
Press any key to enter Debug Mode within 3
, press a key to enter debug mode.
after the
Enter Debug Mode
after the
Enter Debug Mode
Starting XMODEM upload
Chapter 55 Troubleshooting
message (this changes the console port
message.
message before activating XMODEM upload
415