SonicWall Firmware Update

SonicWall Firmware Update

This article provides a step-by-step guide on how to back up your configuration and update the firmware on your SonicWall firewall device safely. Performing a backup before upgrading is essential to prevent configuration loss.

Prerequisites

• Administrative access to the SonicWall management interface.
• The latest firmware file downloaded from the official MySonicWall portal.
• local computer with network access to the SonicWall Firewall device.

Backing Up Firewall Configuration

1. Log in to the SonicWall management interface.
2. Go to Device in the top menu.
3. Navigate to Settings → Firmware and Settings.
4. Create a Local Backup:
   1. Click Create Backup → Local Backup.
   2. This action saves your current configuration in the SonicWall’s memory.
5. Export Configuration:
   1. Click Export Configuration.
   2. Save the exported .EXP file to a safe location on your PC.

Note: Keeping a local and external backup ensures configuration safety in case of upgrade issues.

Uploading the Firmware

1. Go to Device Settings Firmware and Settings.
2. Click Upload Firmware.
3. Browse and select the downloaded firmware file from your computer.
4. Click Upload.
5. A warning message will appear asking for backup confirmation.
   1. Click OK if you have already completed the backup.
6. Wait for the firmware to upload this process may take several minutes.
7. Do not leave the page or power off the device during upload.
8. Booting to the New Firmware
   1. Once the upload is complete, click the "Boot" icon on the far-right.
9. Choose one of the following boot options:
   1. Uploaded Firmware with Current Configuration (Recommended)
   2. Uploaded Firmware with Factory Default Configuration

Note: Select the first option to retain your existing settings.

1. A warning message will appear prompting for reboot confirmation.
   1. Click OK to proceed.
2. The firewall will reboot automatically, applying the new firmware.

After reboot, log in to confirm that the device is running the updated firmware version.

Post-Upgrade Verification

1. Verify firmware version under Device Settings Firmware and Settings.
2. Check network connectivity and service functionality.
3. Ensure all security and VPN configurations are intact.

Additional Recommendations

• Schedule firmware upgrades during maintenance windows.
• Always use firmware downloaded directly from MySonicWall.
• Regularly back up configurations before and after updates.