Flash BIOS update - Flash from Operating System version for Idea pad G470G570
Version 
Installation README
Updated Date 2011-6-24
This package updates the basic input/output system (BIOS) on Idea padG470 G570

BIOS, abbreviation of Basic Input£¯Output System, is integrated in ROM chip on main board, which contains the basic input/output program, system configuration information, system startup self-check and pre-setup programs. BIOS provides most basic low-level hardware operations; it is the connection between software and hardware, and interfacing window of hardware and operating system.

Note: 
Update BIOS process as below£º
Win-flash Version:
 Please use InsydeFlasha_x32(v2.09).exe to flash x86 OS and use InsydeFlasha_x64(V2.09).exe to flash x64 OS.

Attention: Do not power off or restart your computer during the BIOS flashing process, which will cause serious damage and improper functioning of your computer.

Print this file so that you can refer to it during the installation.

Downloading the package
=======================
1.	Click the file link to download the file from the web page. 
2.	For Windows operation system, there is only one update package available,.exe.
3.	When prompted, select a drive and directory in which to save the downloaded file.

Installing the package in Windows.
======================
Take as example, 
1.  Restart computer.
2.  Locate the file that has been downloaded.
3.  Double click the. For Windows 7, you may run it as administrator by left-clicking on the icon and selecting ¡°Run as administrator¡±.
4.  Click Install.
5.  Click Flash BIOS.
6.  Press Enter to start flashing. During the process, you are advised not to turn off the computer.
7.  When the update finishes, the computer will automatically reboot for the changes to take effect.
8.  Enter to BIOS menu, load default setting-> save and exit.
9.  Please reboot the system again.

Updated Information:

Latest Version BIOS fixed all merged issues from previous.

Summary of changes
==================
General Information:
40CN23WW (V2.09)
Fixed:
1,Fixed backlight always off when switch display from external display only to other mode after on external display only doing WB/CB.
2,Fixed black screen issue under XP OS.

40CN05WW (V2.04)
Fixed:
	1. Fix brightness hotkey no function on XP UMA system.
	2. Fix display switch hotkey no function on XP discrete system.

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==========
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