3uTools is not a magic "hack" button that can override the carrier database on a modern, up-to-date iPhone. If you have an iPhone running iOS 12 or later (which includes the iPhone XS, XR, 11, 12, 13, 14, and 15 series), 3uTools cannot directly "crack" the carrier lock by modifying system files. The security architecture of modern iOS versions prevents local software tools from altering the baseband modem settings permanently.

Only the original carrier (e.g., AT&T, Verizon, Sprint) can authorize an unlock.

The short answer is . 3uTools cannot perform a permanent, official IMEI carrier unlock.

This message means your iPhone is . It is essentially a digital leash tethering your expensive device to a single network provider (like AT&T, Verizon, O2, or Vodafone).

The chip "tricks" the iPhone into thinking it’s on the home network. 3. iCloud Activation Bypass