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8. Firmware Upgrade Utility
8.5 Firmware Upgrade Recovery
A firmware upgrade recovery is required in any of the following situations:
• When you invoke Firmware Upgrade Mode (see page 21), but decide not to proceed with the
upgrade.
• When the main board firmware upgrade fails.
• When the I/O firmware upgrade fails.
To perform a firmware upgrade recovery, power off and restart the switch according to the
instructions below:
1. Shut down all the computers that are attached to the switch.
Note:
Unplug the power cord of any computer that has the Keyboard Power On function. Otherwise, the
KVM will still receive power from this computer.
2. Wait 10 seconds, then plug the KVM switch back in.
Note:
If you have shut down more than one Station, power up the highest Station first and work your way
down to the lowest one.
3. Once the switch is up, restart the Firmware upgrade procedure.
Note:
If one of the slave units fails to upgrade successfully, unchain it from the installation and perform
the recovery and upgrade operation independently. After it has been successfully upgraded, plug it back
into the chain.
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