Carrier locks are updated with every security patch. Modded tools are often based on 2–3 year old versions. Running an outdated exploit can corrupt the modem firmware, leading to "No Service" or "Invalid SIM" permanently.
Remember: The time, money, and emotional distress saved by avoiding a malware infection or legal trouble is infinitely more valuable than what you might save by using a risky, unofficial "mod." unlock tool mod
Forces the device into Emergency Download Mode (EDL) using test points or software commands to flash raw firmware images. Carrier locks are updated with every security patch