1. View Network Provider Lock status
Insert a SIM from another operator and turn on your phone. The screen will tell you if your phone is SIM locked.
See how to insert your SIM.
![Apple iPhone 12 Pro Apple iPhone 12 Pro](http://wmstatic.global.ssl.fastly.net/ml/7151223-f-0c15c96e-96eb-4f9e-bd90-9acb7aa835f8.png?width=480&height=480)