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by yftsui 693 days ago
Not only its carrier-locked, it is sometimes model (variant model) specific so after unlock you are still stuck with that carrier because the other carrier will not take it.

For instance, after 1 year T-Mobile paid service it finally unlock your phone, thinking about moving to AT&T. AT&T and its MVNO Cricket Wireless actively disconnect your service when you put the SIM card to an "unsupported phone" just because it is not on their list.