H81120i_00_0201.kdz Firware / Flash file / Software

Starting February 4, the T-mobile LG G4 got a message of an update to software Android 6.0 / firmware H81120i available via OTA push and pull-down.
You can download and install the software update From the phone.

If you want to update your LG G4 to Android 6.0 by flashing the stock firmware, From below link you can download the stock LG G4 Android 6.0 firmware 


  • The phone is operating very slow, even though there is plenty of space in it's ram.
  • Prevent is turning on any or some particular applications which could be virus(Monkey Virus).
  • Automatically restart without informing you even you are using the handset. 
  • Use your mobile data for downloading unwanted application.
  • Take massive time to charge phone's battery.
  • Automatically power drainage problem.
  • Get totally soft bricked.
  • The benefit of having a flash to your Smartphone apart from above mentioned reasons, a fully successful mobile flash will give many other benefits like-
  • Get rid of white screen, Different lines on screen or Blank screen
  • Hang On Logo or boot loop. 
  • Sudden Restart without your permission even you are working on it. 
  • if there will be Pattern Lock
  • Pin Lock
  • Password Lock and any type of other code.

Before flashing following files you must have in your computer.

LG Driver Download Here 
LG Flash Tool 2014 Download Here

  • Execute LG Flash Tools 2014 and Select Type drop down menu ( CDMA ) OR and Phone Mode ( CS_Emergency )
  • Select .KDZ File ( Firmware that you already had downloaded from the above link) 
  • Chose Normal Flash option and click on Just Update Your Device.
  • If you Choose CSE Flash Option, it will Format All Your Application Data or Phone Storage which contain your user data and other stuff. 
  • Turn Off You Device properly and After that Press Volume down (in some phone both keys) to Connect Your Device PC Screen Will Show Download Mode option
  • wait for driver installation which we already downloaded from the link above and let the installation begin/device Update. 
  • Then Select Your Language Region and Select OK
  • Wait for your Update Done
Important notes:

Although this firmware is tested yet take a backup of your mobile phone data before flashing or installing the firmware on your smartphone. As this will help you to recover the data whenever any thing wrong happens to your smart mobile. 

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