LG E400 User Manual page 244

Software update
not guarantee the availability of the newer
version of the firmware for all handset
models.
LG Mobile Phone software update via
Over-the-Air (OTA)
This feature allows you to update the
firmware of your phone to the newer version
conveniently via OTA without connecting the
USB data cable. This feature is only available
if and when LG makes the newer version of
the firmware available for your device.
First, you can check the software version
on your mobile phone: Settings > About
114
phone > Software update > Check now
for update.
You can also delay the update by 1 hour, 4
hours, 8 hours or 24 hours. In this case, the
application will notify you to update when the
time is up. You can also rearrange an update
manually.
NOTE: This feature is dependent on
the network service provider, region or
countries.