For certain older devices (iPhone X and below), 3uTools can help create a bootable USB to run jailbreak environments which are precursors to some bypass methods. How to Handle a Locked iPhone on iOS 15.3
Never download "cracked" versions of 3uTools or "iCloud unlock plugins" from YouTube descriptions or unofficial forums. These files often contain trojans designed to steal your personal data. Conclusion
If you still want to use 3uTools for its legitimate flashing and diagnostic features, : Official Website: ://3u.com
If you are looking for a way to bypass an iCloud Activation Lock on an iPhone running iOS 15.3, you have likely come across various tutorials pointing you toward . Given its reputation as a "swiss army knife" for iOS management, it is a go-to for many users.