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Settings
Set a SIM PIN Lock
A PIN is the identity code of a SIM card, and can be set as the SIM card lock. After you set it
up, you will be required to enter the correct PIN to unlock the SIM card every time you
power on your phone or switch to a new phone to prevent unauthorized access.
If you have entered a wrong PIN and exceeded the maximum number of attempts allowed
to unlock the PIN, you will need to enter the PIN Unlocking Key (PUK) then reset the PIN. If
you exceed the maximum number of attempts allowed to unlock the PUK, your SIM card
will be permanently blocked.
The PIN and PUK of your SIM card are provided by your carrier. The number of digits and
maximum number of attempts allowed to unlock your PIN and PUK are subject to your
carrier.
1
Go to Settings > Security & privacy > More security & privacy > Set up SIM lock to
enter the SIM lock settings screen.
2 Enable Lock SIM card, enter the PIN, then touch OK.
To change the PIN, touch Change SIM PIN, and follow the onscreen instructions.
Use App Lock to Protect Your Privacy
You can lock apps containing private data, such as chat and payment apps, to prevent
unauthorized access.
Enable App Lock
Go to Settings > Security & privacy > Device & data protection > App Lock > ENABLE,
then follow the onscreen instructions to set the App Lock password and select the apps to
lock.
If you have enabled face or fingerprint unlock, you can link App Lock with a face ID or
fingerprint ID as prompted.
This feature may vary by device.
Change the App Lock Password or Security Questions
Enter the App Lock settings screen, go to
> Password type, and select Lock screen
password or Custom PIN as the App Lock password.
If you select Custom PIN, you can go on to set a new password and security questions.
Cancel or Disable App Lock
On the App Lock settings screen, do the following:
• Cancel App Lock: On the list of locked apps, toggle off the switches beside the apps for
which you want to cancel App Lock.
• Reset App Lock: Go to
> DISABLE APP LOCK > DISABLE. This will cancel all locks,
and clear all App Lock settings.
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