Since the lock status is hosted on Apple's servers, local firmware modifications through 3uTools do not change the "Locked" status in Apple’s database. 2. Common Misconceptions (The "Exclusive" Methods)
If you dig into the sources behind that keyword, you’ll find two possibilities: carrier unlock iphone using 3utools exclusive
These services pay intermediaries with access to carrier databases to whitelist the IMEI. 3uTools cannot do this. Apple Support Summary of 3uTools Functional Scope Supported by 3uTools? Firmware Flashing Passcode Bypass (Erase) Jailbreaking Carrier/SIM Unlock from specific carriers or look into jailbreak-based temporary bypasses for older iOS versions? Since the lock status is hosted on Apple's
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It cannot change your IMEI status from "Locked" to "Unlocked" in Apple’s central registry.