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 13 Pro Max Apple iPhone 13 Pro Max](http://wmstatic.global.ssl.fastly.net/ml/7151223-f-110866f2-e6b3-4339-aed9-30c89532ac74.png?width=480&height=480)