Nov 25, 2014 - The following sections describe how to upgrade an existing SonicOS firmware image ... Support Matrix for Importing Preferences . ... back into the Dell SonicWALL security appliance if it is necessary to reboot the ... compatible

Download Sonicwall OS 5.9 Upgrade PDF Guide Here...

https://support.software.dell.com/download/downloads?id=5371870

The following sections describe how to upgrade an existing SonicOS firmware image to a newer version:
Obtaining the Latest SonicOS Firmware Version

Creating a System Backup and Exporting Your Settings

Upgrading a SonicOS Image with Current Preferences

Upgrading a SonicOS Image with Factory Default Settings

Importing Preferences to SonicOS

Support Matrix for Importing Preferences

Using SafeMode to Upgrade

Firmware

This Upgrade Guide provides instructions for upgrading your Dell SonicWALL network security appliance to SonicOS 5.9 from a previous release.

Note: Upgrade from SonicOS 5.9 to SonicOS 6.1 is not supported at this time. Upgrade from SonicOS 5.9 to SonicOS 6.2 is supported.

Obtaining the Latest SonicOS Firmware Version

To obtain a new SonicOS firmware image file for your Dell SonicWALL security appliance:
1. In a browser on your management computer, log into your MySonicWALL account at http://www.mysonicwall.com.
2. In MySonicWALL, click Downloads in the left navigation pane to display the Download Center screen.
3. Select your product in the Software Type drop-down list to display available firmware versions.
4. To download the firmware to your computer, click the link for the firmware version you want. You can download the Release Notes and other associated files in the same way.
Creating a System Backup and Exporting Your Settings

Create Backup

Before beginning the update process, you can use the Create Backup button to make a system backup on your Dell SonicWALL appliance. On the NSA 2400 and above, the backup feature saves a copy of the current system state, firmware, and configuration settings on your appliance, protecting all your existing settings in the event that it becomes necessary to return to a previous configuration state.
Note: The TZ series, NSA 220 series, NSA 240, and NSA 250M series do not support a full firmware image backup.

Create Backup Settings

On the TZ 105 series, TZ 205 series, NSA 220 series, NSA 240, and NSA 250M series, you can use the Create Backup Settings button to save a copy of the configuration settings locally on the firewall.

Note: The TZ 100 series and TZ 200 series do not support saving a copy of the settings directly on the unit