- From the main screen, tap the "Apps" icon.
- Tap the "Settings" icon.
- Slide the screen up to reveal more options. Then, tap "Lock screen and security."
- Slide the screen up to reveal more options. Then, tap "Other security settings."
- Tap "Set up SIM card lock."
- Tap "Lock SIM card."
- You will be prompted to enter a PIN. The default PIN is 1111. Tap "OK."
Note: You will know SIM lock is ON when the slider turns blue.
- To return to the main screen, press the HOME key.
- Congratulations, you've finished this tutorial.