Many sites offering "free" bypass tools are fronts for malware or phishing attempts. Legitimate security experts note that tools claiming to fully restore 4G/LTE cellular services on newer devices (A12 and up) for free are highly suspect.
The iCloud Bypasser 7.3 is promoted as a "final update" capable of unlocking devices running up to newer iOS versions. Unlike many tools that require a separate jailbreak process, this version claims to have a built-in jailbreak mechanism to simplify the bypass.
Do not confuse this tool with the official iCloud for Windows 7.3, which is a legitimate Apple utility for syncing photos and files.
Click the "Check" button within the software to ensure the device is recognized.