Appendix C- Erasing The Firmware - Dell SonicWALL GX250 Manual

APPENDIX C- ERASING THE FIRMWARE

It may be necessary to reset the SonicWALL to its factory clean state if the
administrator password is forgotten, or the firmware has become corrupt. 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 will be necessary to follow the initial configuration procedures detailed in this
manual's QuickStart section to reconfigure the SonicWALL.
1. Turn off the SonicWALL and disconnect it from the network.
2. Locate the recessed Reset Switch on the back panel of the SonicWALL.
3. Press and hold down 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.
4. Log back into the SonicWALL at the default IP address, "http://192.168.168.168".
Make sure that the Management Station's IP address is in the same subnet as the
SonicWALL--for example, "192.168.168.200".
5. The SonicWALL Management Interface displays a message stating that the
firmware has been erased. Click the Browse button to locate the SonicWALL
firmware file on the Management Station hard drive. Or upload the firmware file
that is located on the SonicWALL Companion CD.
6. Reconfigure the SonicWALL as described in Chapter 2.
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