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. Getting to recovery mode is relitavely easy so lets start from turning off your device.
2. Now wait a moment and press and hold power button with volume button at the same time.
3. Now wait untill you will see LG logo and release the buttons.
4. After that, your phone will boot into recovery mode.
6. And the end, you know now how to get into recovery mode on your LG K7.
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.