9
4. Before installing an open source application and 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 Google Play Store™. If there are improperly installed applications
on your phone, it may not work normally or a serious error may occur. You must
uninstall those applications and all associated data and settings from the phone.
5. Using the hard reset (Factory reset)
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