Firmware Upgrade Recovery
There are basically three conditions that call for firmware upgrade recovery:
When you invoke Firmware Upgrade Mode (see Preparation, page 43), but decide not to proceed with the upgrade.
When the Mainboard firmware upgrade fails.
When the I/O firmware upgrade fails.
Note: If one of the cascaded switches fails to upgrade successfully, unplug it from the installation and perform the recovery and upgrade operation independently. After it has been successfully upgraded, plug it back into the installation.
To perform a firmware upgrade recovery, do the following:
1.Unplug the switch's power adapter cable.
2.Slide the Firmware Upgrade Reset Switch (see page 7) to the Recover position.
3.Use the Firmware Upgrade Cable (provided with this unit), to connect a COM port on your computer with the Firmware Upgrade Port of the switch.
4.Plug the switch's power adapter cable back in.
5.Repeat the upgrade procedure from Starting the Upgrade, page 44.
6.After the upgrade completes successfully, unplug the switch's power adapter cable, once again.
7.Slide the Firmware Upgrade Recovery Switch back to the Normal position.
8.Plug the switch's power adapter cable back in.
This completes the Firmware Upgrade Recovery operation, and your switch is ready for use.
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