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

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 device or switch to a new device to prevent unauthorised 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 network provider. The number of
digits and maximum number of attempts allowed to unlock your PIN and PUK are subject to
your network provider.
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 permissions, in order to provide
you with corresponding services.
However, some apps may obtain too many unnecessary permissions, posing potential risks to
your privacy and information security. You can monitor the permissions granted to each app
and deny those you deem unnecessary.
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.
Settings
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