Apple iPhone 4 support.

1. On the homescreen, tap Settings





2. Tap Phone





3. Tap SIM PIN





4. Make sure the SIM PIN is turned ON





5. Enter the default SIM PIN which is 0000 and tap Done
6. If the default PIN doesn't work, you might have already created a PIN. Either enter that PIN or if you've forgotten what it was but enter the wrong SIM three times, you'll need to call us to get a PUK code, which will allow you to reset your PIN. You'll have ten attempts to enter the PUK code before your SIM is locked permanently





7. To change your SIM PIN tap Change PIN and follow the onscreen instructions

Your PIN will now be set up on your phone.