Learn how to use Bluetooth, Airplane Mode Setting on your LG G Flex.
For Bluetooth Settings: http://www.primeinspiration.com/guides/mobile-guides/lg/202-g-flex/7216-how-to-use-bluetooth-settings-lg-g-flex.html
For Airplane Mode Settings: http://www.primeinspiration.com/guides/mobile-guides/lg/202-g-flex/7214-how-to-use-airplane-mode-lg-g-flex.html