Recovery is included on a separate partition from the main Android OS on all Android devices.
You can boot directly into recovery mode and use it to factory reset the device, delete the cache partition, or apply software updates.
It can help you fix your device.
1. The very first step of getting to recovery mode is turning off your device.
2. Now press and hold volume down + home + power buttons at the same time and don't let go.
3. Wait untill you get LG logo on your screen and you can release the buttons.
4. After few seconds your phone will get into Recovery Mode screen.
5. And this is it! you succesfully got into Recovery Mode.