The Firmware Upgrade Utility
Firmware Upgrade Recovery
There are basically three conditions that call for firmware upgrade recovery:
MWhen you invoke Firmware Upgrade Mode (see p.
MWhen the Mainboard firmware upgrade fails.
MWhen the I/O firmware upgrade fails.
To perform a firmware upgrade recovery, do the following:
1.Slide the Firmware Upgrade Recovery Switch (see p.
2.Power off and restart the the switch according to the instructions given in the Powering Off and Restarting section (p.
3.Slide the Firmware Upgrade Recovery Switch back to the Normal position.
4.Repeat Step 2.
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 succussfully upgraded, plug it back into the chain
