Recovery, in Android, refers to the bootable partition, in which the recovery console is installed.
It contains tools to help repair your installations as well as install official OS updates by using a combination of key presses or instructions from a command line sometimes.
Android is open, meaning the recovery source code is available, so that building a customized ROM is relatively easy.
1. To put your phone in recovery mode, first make sure you have switched it off.
2. Now press and hold power button + home + volume down button at the same time.
3. Hold those buttons untill you see LG logo.
4. Then your device will boot recovery mode menu.
5. Now you know to get into recovery mode on LG Optimus Zone VS410.