LG K20 Plus User Manual page 106

LG Mobile Phone software update via Over-the-
Air (OTA)
This feature allows you to conveniently update your phone' s software
to a newer version via OTA, without connecting a USB cable. This
feature will only be available if and when LG makes a newer firmware
version available for your device.
To perform the phone software update:
Settings General About phone Update Center System
updates CHECK FOR UPDATE.
Your personal data from internal phone storage—including
information about your Google account and any other accounts,
your system/application data and settings, any downloaded
applications and your DRM license—might be lost in the process
of updating your phone' s software. Therefore, LG recommends
that you backup your personal data before updating your phone' s
software. LG does not take responsibility for any loss of personal
data.
This feature depends on the area or service provider.
Appendix 105