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Settings : Security and privacy : More security and privacy 303
Lock SIM card
Set up SIM lock
This feature is not available in all countries.
Your SIM card came with a default PIN from your carrier. You can use it to set up an optional SIM card lock,
which prevents others from using your mobile plan and accessing account information if your phone is
stolen.
If you add a SIM lock, you will be prompted to enter the PIN each time you swap SIM cards or restart the
phone.
1.
Make sure you have the PIN your carrier provided with the SIM card. If you don't have it, contact your
carrier.
2.
Go to Settings > Security and privacy > More security and privacy.
3.
Tap SIM lock.
4.
Turn Lock SIM on
.
5.
Enter your carrier-provided PIN and follow the onscreen instructions.
Unlock SIM card
When prompted, enter the PIN used to set up the SIM lock.
Caution: If you enter an incorrect PIN multiple times, the SIM will be disabled.
If you accidentally disabled the SIM
If you enter an incorrect PIN multiple times, the SIM will be disabled.
Contact your carrier for a PIN unlock key (PUK) to re-enable the SIM.
Change SIM PIN
To change the PIN code for your SIM card:
1.
Be sure you have the previous PIN. If you don't, contact your carrier for a PIN unlock key (PUK).
2.
Go to Settings > Security and privacy > More security and privacy.
3.
Tap SIM lock.
4.
If Lock SIM is off, turn it on
.
5.
Tap Change SIM PIN.
6.
Enter the previous PIN and touch OK.
7.
Enter a new PIN and tap OK.
8.
Re-enter the new PIN and tap OK.