Usually performed via a web-based GUI (System > Maintenance > Firmware Upgrade) or via a formatted USB drive.
Before attempting an update, verify the file's MD5 or SHA-256 checksum to ensure the download wasn't corrupted. GF251122-MSMR-U1.1122.0.0-ELA.rar
Based on the naming convention, is a firmware or software update package, likely for an industrial IoT device, router, or automotive telematics unit . Usually performed via a web-based GUI (System >