Warning: The LG G3 S is no longer maintained. A build guide is available for developers that would like to make private builds, or even restart official support.
Special boot modes
Recovery: With the device powered off, hold Volume Down + Power.Note: Accept the factory reset prompt using the hardware buttons. If you have done everything correctly, this will not actually reset your device but instead will boot the custom recovery.
Bootloader/Fastboot/Download: With the device powered off, hold Volume Up and connect the USB cable.
Find help online
Note: This page is auto-generated for the LG G3 S, based on the device’s information, located here. You can find similar instructions for every officially-supported device on this wiki.