Lock your SIM card with a PIN

Turn the SIM PIN on or off

1. Open Network Settings.
2. Under SIM PIN, if your device has two SIMs, tap SIM and choose one.
3. Turn Lock SIM with PIN on or off.
4. Enter the PIN and tap OK.

Change the PIN

1. Under SIM PIN, tap Change PIN.... The PIN lock must be on.
2. Enter the Current PIN and the New PIN, and tap OK.

Unblock a locked SIM

If the PIN is entered wrongly too many times, the SIM is PUK-locked.

1. Under SIM PIN, tap Unblock with PUK....
2. Enter the PUK code from your operator and a New PIN, and tap OK.