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80 If Firmware Upgrade Appears to Fail
Recovering from Failed Firmware Upgrade
To recover from firmware upgrade difficulties, you must first reinstall the previous
versions of firmware, then upgrade to the new version of firmware. The previous versions
of firmware were included in the compressed file you downloaded from the Hewlett-
Packard Software Depot (http://www.software.hp.com).
1. Connect a serial cable to the hub RS-232 port and configure the terminal emulator (see
Setting Up a Connection to a PC on page45).
2. Press the Reset button on the front panel of the hub.
The terminal emulator screen begins to display the status of the hub. To reboot, you
must interrupt the status display to go to the Boot menu.
3. Wait for the following message:
Press Enter key for Boot Menu, Agent boot in 6 seconds.
4. Immediately press <ENTER> to display the Boot menu:
Boot menu V01.04
1. Download and update Device Agent code
2. Download and update Hub-Controller code
3. Reset hub and run self test
4. Start Normal Hub operation