If you would like to change the SIM pin code, start from the next step.
If you would like to set up a lock screen on your phone, jump to step 11.
Make sure you have your Public SIM PIN before you start the guide.
2
Swipe up
3
Select Settings
4
Scroll to and select Security
5
Scroll to and select SIM card lock
6
Select Public and Change SIM PIN
7
Enter your Old SIM PIN and select OK
8
Enter your New SIM PIN and select OK
9
Confirm your new SIM PIN and select OK
10
Your SIM PIN has been changed
11
To activate your screen lock, go to the Security menu and select Screen lock
