3uTools is a powerful device management tool but cannot reliably or lawfully remove Apple’s server‑enforced iCloud Activation Lock on most iPhones running iOS 15.3—especially newer hardware. The recommended course for legitimately locked devices is to use Apple’s official processes or contact the prior owner; using unofficial bypass tools carries significant legal, security, and reliability risks.
Return it to the seller. Only the original owner can unlock it legitimately. icloud unlock all iphone ios 153 download 3utools link
Many fake tools ask you to enter your "locked" Apple ID and password to "process the unlock." They immediately send this information to scammers, who then lock your other Apple devices or make fraudulent purchases. 3uTools is a powerful device management tool but