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3. Before installing an open source application and
operating system (OS)
WARNING
If you install and use an OS other than the one provided by the
manufacturer it may cause your phone to malfunction. In addition, your
phone will no longer be covered by the warranty.
WARNING
To protect your phone and personal data, only download applications
from trusted sources, such as Play Store. If there are improperly installed
applications on your phone, the phone may not work normally or a serious
error may occur. You must uninstall those applications and all associated
data and settings from the phone.
4. Using a screen lock
Set a screen lock to secure your phone and prevent unauthorized use. From the
Home screen, tap
Select screen lock > Pattern, PIN, or Password. If you choose Pattern, you will be
prompted to create a Backup PIN as a safety measure in case you forget your screen
lock.
Caution: Create a Google account before setting a screen lock and remember
the Backup PIN you created when creating your screen lock.
> Apps tab (if necessary) > Settings
> Lock screen >
7
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