Zoom 4501 - System Information and Firmware Upgrade; The System Information Page; The Firmware Upgrade Page

The System Information Page
You can use the System Information page to view information about your router, and to
view, download, and delete system logs.
The Firmware Upgrade Page
You can use the Firmware Upgrade page to get the most recent version of the router
firmware, if available.
58 3G Wireless-N Router User Guide