KH0116 User Manual

Firmware Upgrade Recovery

There are basically three conditions that call for firmware upgrade recovery:

ŠWhen you invoke Firmware Upgrade Mode (see p. 29), but decide not to proceed with the upgrade.

ŠWhen the Mainboard firmware upgrade fails.

ŠWhen the I/O firmware upgrade fails.

To perform a firmware upgrade recovery, do the following:

1.Slide the Firmware Upgrade Recovery Switch (see p. 6) to the Recover position.

2.Power off and restart the switch according to the instructions given in the Powering Off and Restarting section (p. 18).

3.Slide the Firmware Upgrade Recovery Switch back to the Normal position.

4.Repeat Step 2.

Note: If one of the child units fails to upgrade successfully, unchain it from the installation and perform the recovery and upgrade operation on it independently. After it has been successfully upgraded, plug it back into the chain

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