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6. The Firmware Upgrade Utility
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Firmware Upgrade Recovery
There are basically three conditions that call for firmware upgrade recovery:
When you invoke Firmware Upgrade Mode (see Preparation, p. 50), but
decide not to proceed with the upgrade.
When the Mainboard firmware upgrade fails.
When the I/O firmware upgrade fails.
To perform a firmware upgrade recovery, do the following:
1. Power off the switch. If it is part of a daisy chain, disconnect it from the
chain.
2. Connect the Firmware Upgrade Cable to its Firmware Upgrade Port.
3. Slide the Firmware Upgrade Recovery Switch to the Recover position.
4. Power the switch back on and repeat the upgrade procedure.
5. After the switch has been successfully upgraded, power it off, and slide the
Firmware Upgrade Recovery Switch back to the Normal position.
6. If the switch is part of a daisy chain, replace it in the chain.
7. Power the switch back on
cl12816_v2.book Page 55 Thursday, March 23, 2006 2:21 PM