Searching for a means you are likely maintaining a legacy network environment on a tight budget. While this firmware can breathe temporary life into reliable old SonicWall appliances, it is not a permanent solution.
and select your specific product from the "Software Type" or "Product Line" list. Select Version SonicOS 5.9.2.13 . If it is not immediately visible, click Browse All Firmware to see older general releases. Download the File Sonicos 5.9.2.13 Download