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 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