Flash BIOS update - Flash from Operating System version for Lenovo S41-70, Lenovo U41-70, Lenovo Flex 3-1470, Lenovo Flex 3-1570, Yoga 500-14IBD, Yoga 500-15IBD, Yoga 500-14IHW, Yoga 500-15IHW

Version BDCN71WW

Applicable OS Win7 & Win8.1 & Win10 (64-bit)

Installation README
Updated Date: 2016-8-03
This package updates the basic input/output system (BIOS) on Lenovo S41-70, Lenovo U41-70, Lenovo Flex 3-1470, Lenovo Flex 3-1570, Yoga 500-14IBD, Yoga 500-15IBD, Yoga 500-14IHW, Yoga 500-15IHW
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: Make note of any settings you have changed in the BIOS Configuration Utility. These settings may have to be re-entered after updating the BIOS.

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. When prompted, select a drive and directory in which to save the downloaded file.

Installing the package in Windows.
======================
Please follow bellowed step to update BIOS in Windows:
1.  Locate the file bdcn71ww.exe that has been downloaded.
2.  Double click the bdcn71ww.exe icon.
3.  Follow wizard UI by making sure what BIOS to flash and flash on what platform.
4.  Finally press Install & Finish to start flashing. During the process, you are advised not to turn off the computer.
5.  When the update finishes, the computer will automatically reboot for the changes to take effect.

Updated Information:

Latest Version BIOS fixed all merged issues from previous.

Summary of changes
==================
General Information:

BDCN71WW:
1. Update Lenovo LOGO.
2. Add patch for New PCR request to fix SmmRuntimeManagement issue.
3. Add patch for Intel sighting issue : DHCP misses boundary check for network packet.
   1. Remove KBC enter CRISIS condition(AC exist, lid close, EC 8 sec reset).
   2. Add debug message.


Trademarks
==========
IdeaPad and IdeaCentre are registered trademarks of Lenovo.

Microsoft and Windows are trademarks of Microsoft Corporation in 
the United States, other countries, or both. Other company, product, 
and service names may be trademarks or service marks of others.

THIS DOCUMENT IS PROVIDED "AS IS" WITHOUT WARRANTY OF ANY KIND.  
WE DISCLAIM ALL WARRANTIES, WHETHER EXPRESS OR IMPLIED, 
INCLUDING WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF FITNESS 
FOR A PARTICULAR PURPOSE AND MERCHANTABILITY WITH RESPECT TO THE 
INFORMATION IN THIS DOCUMENT.  BY FURNISHING THIS DOCUMENT, WEGRANT 
NO LICENSES TO ANY PATENTS OR COPYRIGHTS.

Copyright (c) Lenovo 2008, all rights reserved