Mate30 Pro 5G User Guide-(LIO-N29,EMUI12.0_01,en)

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 > SIM PIN to enter the SIM PIN screen.
2 Enable SIM PIN, enter the PIN, then touch OK.
To change the PIN, touch Change SIM PIN, and follow the onscreen instructions.
Privacy
Manage App Access Permissions
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 in system Settings.
Manage the Location Permission
After being granted the Location permission, an app can obtain your location information.
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, then touch the icon of the app you
want to change the permission for to manage the Location access.
Manage Permissions to Access Other Private Data
You can also manage permissions to access your personal data, such as Contacts, Messaging,
Call logs, Body sensors, Calendar, and Camera, to enjoy better services and protect your
privacy.
On the Permission manager screen, touch the permission you want to manage, and toggle
the switch for each app on or
o as required.
Use Location Services
Some apps need to obtain your location information to provide better services. You can
enable or disable location services, and grant or deny permissions to access location
information for particular apps as required.
Settings
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