We do too in native English, but “factory unlocked” has a more precise meaning, in that it reflects a potential change in the hardware. SIM locks and/or carrier

We do too in native English, but “factory unlocked” has a more precise meaning, in that it reflects a potential change in the hardware. SIM locks and/or carrier locks refer to this property. The Android and Google locks are independent of the above types of locks, and are account bound like the above locks, but instead of being linked to your phone service account, they are linked to your Google or Apple accounts. You could have one and not the other, or neither, or both. However, no end user benefits from a carrier or SIM locked phone. Mobile device OS-level blocks are important for security, however, and are under the control of the legitimate user and may be turned off anytime. To disable the SIM or carrier locks, you need the unlock code you originally mentioned.