Table of Contents
Advertisement
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 > More settings > 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.
Privacy
Permission management
Apps may require certain permissions, such as the Location permission, in order to provide
you with corresponding services.
However, some apps may obtain excessive permissions, posing potential risks to your
information privacy and security. You can check the permissions granted to each app and
deny those you deem unnecessary.
Review permission access logs
You can review and manage privacy access logs as needed to disable unjustified
permissions and enjoy better services.
Go to the Permission manager screen and select a permission to turn on or off the
application's access.
Manage the Location Permission
After granting the Location permission to an app, it can obtain your location information at
any time. For example, if a map app is granted the Location permission, it can provide you
with location and navigation services. You can revoke the permission if you do not need
these services.
1
Go to Settings > Apps > Permission manager.
2
On the Permission manager screen, touch Location, touch the icon of the
corresponding app, then select one of the access permission options.
Settings
122
Advertisement
Table of Contents
