Third-party unlocking platforms, including various ".tk" or ".free" domains, typically claim to provide IMEI-based network unlocking for smartphones like iPhones and Samsung Galaxy devices. They often advertise a "free" or very low-cost initial check to see if your device is eligible for an unlock.
If any step fails, . That can permanently lock the device (so‑called “SIM lockout”). Instead, revert to the original SIM, reboot, and consider a paid or official unlocking method. http unlockformetk free