Use a terminal (like PuTTY on Windows or Terminal on macOS) to log into the USG using its IP address (default is 192.168.1.1 ) and credentials (default ubnt / ubnt ).
You can find the official firmware binaries on the Ubiquiti Downloads page . unifi security gateway 3p firmware download
After the reboot, log back in and type info to confirm the new version is active. 3. Local Upgrade (Offline Method) USG - Software Downloads - Ubiquiti Use a terminal (like PuTTY on Windows or