User Manual

Chapter 4. Firmware Upgrade
41
Firmware Upgrade Recovery
There are three conditions that call for firmware upgrade recovery:
 When the unit’s firmware becomes corrupted for some reason and you
are unable to operate it.
 When a firmware upgrade procedure is interrupted.
 When a firmware upgrade procedure fails.
To perform a firmware upgrade recovery, do the following:
1. Power off the CL3800 / CL3700 / CL3100.
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 CL3800 / CL3700 / CL3100 back on and repeat the upgrade
procedure.
5. After the CL3800 / CL3700 / CL3100 has been successfully upgraded,
power it off, and slide the Firmware Upgrade Recovery Switch back to the
Normal position.
6. Power the CL3800 / CL3700 / CL3100 back on.
Exiting Firmware Upgrade Mode
To exit the Firmware Upgrade Mode, do the following:
1. Slide the Firmware Upgrade Recovery Switch (see page 9) to the Normal
position.
2. Power off and restart the CL3800 / CL3700 / CL3100 according to the
instructions given in the Powering Off and Restarting section (see
page 31).