Since 3uTools itself does not have a "Carrier Unlock" button, you must use one of these three methods:
Many YouTube videos claim "Carrier Unlock with 3uTools" are . They show you a fake "Success" screen, but your phone will still reject other SIM cards. 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 3uTools itself does not have a "Carrier