Flash LG Optimus LTE LU6200 to Android 4.0.4 ICS  
You will need to download the following files:

• ROM:
  
• LG Optimus LTE LU6200 Android 4.0.4 Ice Cream Sandwich Firmware Download:
  
• develoid.com/lg/OptimusLTE/LG-LU6200/StockFirmware/LU620166_00.kdz
  
• Download and install LG Update: http://csmg.lgmobile.com:9002/client...2CAppSetup.exe
  
• Download Flash tool: http://dl.dropbox.com/u/43909377/FlashTool.1.0.54.zip then extract (eg d: \ FlashTool):
  
• LG Optimus LTE USB Driver: http://LGUnitedMobileDriver_S4981MAN36AP22_ML_WHQL_Ver_3.  6.rar
  
• WindowsEnablerv1.1.zip: http://dl.dropbox.com/u/43909377/WindowsEnablerv1.1.zip
  

How to update LG Optimus LTE LU6200 to Android 4.0.4 ICS Steps:
Cable into the PC and phone theft: USB Debugging and select Unknow soure slightly.
Unzip and run Windows Enabler.exe WindowsEnablerv1.1.zip, Click on the icon in the taskbar to switch On (see figure below)

Run File d: \ FlashTool \ UpTestEX.exe



This step is the "Start Upgrade" you do not choose. you start by choose " Normal Web update test"


This step may choose another Language replaced by Chinese:


Start running:    
If errors occur, then you put the machine on  the DOWNLOAD MODE (remove
the battery, theft cable, press the "volume"  with "Power Button" few  
seconds)


wait until this is done