How to install or upgrade your smartphone Operating system Android 4.4.2 Kitkat OS in LG you can follow the given procedures. In some smartphone of LG has Android 4.4.2 Kitkat OS installed in it but some like LG Optimus L9 P768 which donít have so in that case follow requirements given and then enjoy your 4.4.2 Kitkat Operating system in your LG smart mobile phones like Optimus L9 P768.

Before proceeding with Installation process kindly collect all the requirements which are stated below so that you will not face any problem during the OS installation in your LG smartphone.

Installation Requirements

  • Backup your phone data
  • Make your battery charging full
  • Go in Settings > Applications > Development and enable USB debugging
  • Computer system (windows pc)
  • Install the latest LG USB drivers
  • Install Root checker app in LG mobile phone (e.g. if youíre performing this on LG Optimus L9 P768 Root checker app)
  • Verify that your phone is rooted correctly. If not then root it, without rooting process you canít able to perform installation process.
  • Download Android firmware package of Kitkat 4.4.2
  • Download Google Apps Package
  • Keep a SD Card with minimum 500MB of free space in it

Installation Procedure
  • Connect your phone to your pc OG USB data cable
  • Save the downloaded package of KitKat 4.4.2 Android firmware & Google Apps in your SD card
  • Turn off your mobile phone
  • Boot your mobile phone in recovery mode (Hint: hold the volume + home + power button phone will automatically start in recovery mode)
  • Choose Clear Cache/ Wipe Data. Use the power button to select (Hint: navigate up and down with volume key)
  • With the help of main menu choose install zip from your SD card
  • First select the firmware package file. (It will start the room installation; wait back until it is over)
  • Select the Google Apps package (Parallel)
  • Restart your mobile phone and you are can use your new Android 4.4.2 KitKat OS on LG mobile phone