Recovering The Firmware; Figure 280 Example Xmodem Upload - ZyXEL Communications IES-1248-51V User Manual

again you will see the initial screen. When you see the message Press any key
to enter Debug Mode within 3 seconds press any key to enter debug mode.
To upload the configuration file, do the following:
Type atlc after the Enter Debug Mode message.
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Wait for the Starting XMODEM upload message before activating XMODEM upload
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on your terminal.
This is an example Xmodem configuration upload using HyperTerminal. Click
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Transfer, then Send File to display the following screen.

Figure 280 Example Xmodem Upload

Type the configuration file's location, or click Browse to search for it. Choose the
1K Xmodem protocol. Then click Send.
After a successful configuration file upload, type atgo to restart the IES.
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The IES is now reinitialized with a default configuration file including the default
password of "1234".

70.17 Recovering the Firmware

Usually you should use FTP or the web configurator to upload the IES's firmware.
If the IES will not start up, the firmware may be lost or corrupted. Use the
following procedure to upload firmware to the IES only when you are unable to
upload firmware through FTP.
Note: This procedure is for emergency situations only.
Obtain the firmware file, unzip it and save it in a folder on your computer.
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Chapter 70 Troubleshooting
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