Software update for the LG K40 (LMX420AS)

Software update for the LG K40 (LMX420AS)


Latest update
Getting started
Update & verify software
Previous updates

Latest update

  • What's new: Chipset update

 

  • Release date: July 23, 2021
  • Android version: 10
  • Security patch level (SPL): June 1, 2021
  • Build number: QKQ1.200614.002
  • Software version: X420AS20m
  • File size: 106MB

 

Getting started

  • Make sure you’re in the U.S. and on our wireless network.
  • You can download the update via Firmware Over the Air (FOTA).
  • You must connect your device to Wi-Fi® to download the update.
  • Although there should be no impacts to settings or data, we recommend backing up your media files to an SD card, a computer, or using a favorite application, prior to upgrading the software.

Update & verify software

Update software

  1. Make sure your device is fully charged and connected to Wi-Fi.
  2. Swipe down from the Notification bar and select Settings.
  3. Select the General tab, then scroll to and select About Phone.
  4. Select Software update, then Update now.
  5. Follow the on-screen prompts to download and install the update.
  6. The device automatically restarts once the new software successfully installs.

Verify software update

  1. Swipe down from the Notification bar and select Settings.
  2. Select the General tab.
  3. Scroll to and select About phone, then Software information
  4. If the Android and Software versions don’t match the current update details; perform additional updates until they do.

Troubleshoot software update

Previous updates

DateDetails
June 23, 2021
  • Android version: 10
  • Software version: X420AS20l
  • File size: 6MB
April 16, 2021
  • Android version: 10
  • Software version: X420AS20k
  • File size: 134MB
Feb. 23, 2021
  • Android version: 10
  • Software version: X420AS20h
  • File size: 134MB
Dec. 14, 2020
  • Android version: 10
  • Software version: X420AS20g
  • File size: 135MB
Oct. 28, 2020
  • Android version: 10
  • Software version: X420AS20f
  • File size: 129MB
Oct. 13, 2020
  • Android version: 10
  • Software version: X420AS10e
  • File size: 1.27GB
Aug. 31, 2020
  • Android version: 9.0
  • Software version: X420AS10k
  • File size: 131MB
July 20, 2020
  • Android version: 9.0
  • Software version: X420AS10j
  • File size: 124MB
May 26, 2020
  • Android Version: 9.0
  • Software Version: X420AS10i
  • File Size: 125MB
March 23, 2020
  • Android Version: 9.0
  • Software Version: X420AS10h
  • File Size: 126MB
Feb. 19, 2020
  • Android Version: 9.0
  • Software Version: X420AS10g
  • File size: 510MB
Nov 19,2019
  • Android Version: 9.0
  • Software Version: X420AS10c
  • File size: 131MB


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