![Apple iPhone 11](http://wmstatic.global.ssl.fastly.net/ml/7271123-f-f34f67f0-9728-48ce-bfa7-d442f8c3ff35.png?width=150&height=320)
Apple iPhone 11
iOS 17
Turn use of PIN on or off
The PIN protects your SIM from unauthorised use if your phone should get stolen. If use of PIN is turned on, it needs to be keyed in when you turn on your phone.
1. 1. Find "SIM PIN"
Press Settings.
![](http://wmstatic.global.ssl.fastly.net/ml/7271123-f-aa8fa17a-fa1e-478c-9714-6c8b880b60d3.png?width=206&height=444)
Press Mobile Service.
![](http://wmstatic.global.ssl.fastly.net/ml/7271123-f-e9d48bac-e04e-48dc-8e9e-57c8e01d5ed9.png?width=206&height=444)
Press SIM PIN.
![](http://wmstatic.global.ssl.fastly.net/ml/7271123-f-f62bfe51-782e-43f4-84e8-1e8be5ee04b5.png?width=206&height=444)
2. 2. Turn use of PIN on or off
Press the indicator next to "SIM PIN" to turn the function on or off.
![](http://wmstatic.global.ssl.fastly.net/ml/7271123-f-30d51ad6-67b5-4853-a815-03a40753077f.png?width=206&height=444)
Key in your PIN and press Done.
![](http://wmstatic.global.ssl.fastly.net/ml/7271123-f-d59fda0d-13c7-4db5-9521-2fbd561d19a8.png?width=206&height=444)
3. 3. Return to the home screen
Slide your finger upwards starting from the bottom of the screen to return to the home screen.
![](http://wmstatic.global.ssl.fastly.net/ml/7271123-f-30d51ad6-67b5-4853-a815-03a40753077f.png?width=206&height=444)