Aot-4221sr Firmware Update -

If you are still running firmware dated 2020 or earlier, your AOT-4221SR is likely exposed to the "RelayGhost" vulnerability (CVE-2021-44228 analog in OT devices).

Log into the web GUI (default: 192.168.1.200 ) → Status → System Info . Write down the existing build number (e.g., v1.3.2 ). aot-4221sr firmware update

Suddenly, the screen turned a blinding white. Validation Failed: Integrity Checksum Mismatch. If you are still running firmware dated 2020