Firmware Upgrade Recovery
If the firmware upgrade procedure is unnaturally aborted (due to a power outage, for example), the switch that was being upgraded at the time may become inoperable, and may be incapable of accepting a normal firmware upgrade.
If this occurs, to recover, do the following:
1.Slide the unit’s Firmware Upgrade Recovery Switch (see p. 6), to the RECOVER position.
2.Perform a warm reset (see p. 6).
The switch is now ready to be upgraded.
3.Slide the Recovery Switch back to the NORMAL position.
4.Start the firmware upgrade procedure (see p. 63).
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