AT&T LG K40 LMX420AS Software Update with March 2020 Android security patch

AT&T LG K40 Software Update

The LG K40 LMX420AS (X420AS) on AT&T  is getting a new software update.

According to AT&T, The Update arrives as software version X420AS10h and includes the March 1, 2020 Android Security Patch.

In November 2019, The AT&T LG K40 LMX420AS (X420AS) received its first software update which brings the device’s software version to X420AS10c.

For your information, The Update builds X420AS10h is based on Android 9.0 Pie.

AT&T LG K40 Software Update X420AS1h

The details

  • Release date: March 23, 2020
  • Android version: 9.0
  • Security patch level (SPL): March 1, 2020
  • Build number: PKQ1.190414.001
  • Software version: X420AS10h
  • File size: 126MB

What’s changing: Security patch level – March 2020

The update is now going out over the air! If you have not got the OTA update notification, you can manually check for the update by going into Settings > General tab > Update center > System update > Check for update.

Just like many other LG devices from AT&T, The AT&T branded LG K40 does not support software update through LG Bridge.

There is no way to download the stock kdz or tot firmware for AT&T LG K40 LMX420AS (X420AS) smartphone.