LG -P715 User Manual page 186

Getting to know your phone
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. Using the Hard Reset (Factory reset)
If your phone needs to be restored to its original condition, use Hard Reset to reboot
your phone.
1 When the phone is switched off, press and hold the Volume down key +
QuickButton + Power key.
2 Release the Power key when the LG logo appears on the screen.
3 Release Volume down key + QuickButton when the LG logo disappears. After a
while, Android robot will be displayed and recovery will proceed.
Leave your phone for at least a minute while the hard reset is carried out. You will then
be able to switch your phone back on.
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