User Guide

Page 186 SonicWALL Internet Security Appliance User’s Guide
Appendix E - Erasing the Firmware
There can be instances when it is necessary to reset the SonicWALL to its factory clean
state if the following events happen to the appliance:
• Administrator password is forgotten
• The firmware has become corrupt, and you cannot contact the Management Interface
• The test light comes on and stays on for more than a few minutes.
• During the troubleshooting process, you must start from a “known” state.
Once the firmware is erased, new firmware must be loaded, and the SonicWALL must be
reconfigured.
The following procedure erases all settings and reverts the unit to the factory default state.
It is necessary to follow the initial configuration procedures detailed in this manual's
QuickStart section to reconfigure the SonicWALL. If you need the firmware, download it
from <http://firmware.sonicwall.com> or load it from the CD included with the appliance.
You can also download firmware by logging into <http://www.mysonicwall.com> as a
registered user.
Locating the Reset button on your SonicWALL Internet Security Appliance
SonicWALL SOHO3, PRO 100, TELE3, SOHO 10, SOHO 50, XPRS, SOHO Telecommuter,
PRO 200, PRO 300, and newer SonicWALL DMZ models use the small recessed button on
the back of the unit for this procedure. If your SonicWALL DMZ unit has a square reset
button that is not recessed on the back of the unit, follow the procedure below to locate
the blue reset button.
SonicWALL 10 and 50 models, SonicWALL Plus, and older SonicWALL DMZ models have a
blue reset button inside. Open the SonicWALL unit by unscrewing the screws on the bottom
and gently pulling the top cover off. (The front and back panels remain in place.) Locate
the blue button towards the front between the Power, Test, and WAN LEDs.
If your SonicWALL DMZ unit has a circular reset button that is recessed in the back of the
unit, then it’s an older DMZ model and you should follow the procedure for locating the
reset button inside the unit.
Erasing the Firmware for all Models
1. Turn off the SonicWALL and disconnect all cables to the network.
2. Locate the recessed Reset Switch on the back panel of the SonicWALL.
3. Press and hold the Reset Switch and then apply power to the SonicWALL. Once the
Test LED starts to flash, let go of the Reset Switch.
The Test LED flashes for approximately 90 seconds while the firmware is erased. After
completing the diagnostic sequence, the Test LED stays lit, indicating that the firmware has
been erased. It is normal for the Test LED to stay lit after erasing the firmware. It does not
go off until the firmware is installed and loaded into memory by the automatic restart.
integrated_manual.book Page 186 Friday, October 12, 2001 2:56 PM