Flash BIOS update - Flash from Operating System version
for IdeaPad Y550
Version 15CN35WW
Installation README

This package updates the basic input/output system (BIOS) on
IdeaPad Y550.

BIOS is programming that controls low-level hardware operations ,including interactions with diskette drives, hard drives, and the keyboard. The BIOS is stored on a chip. Your computer uses flash BIOS, which can be updated through a program on a flash. Therefore, you do not have to replace the BIOS chip to update the BIOS.

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 under any circumstance power off or restart the system during the Flash update procedure. Doing so will critically damage your system.

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.
======================
1.  Locate the file 15CN35WW.exe that has been downloaded.
2.  Double click the 15CN35WW.exe icon.
3.  Click install
4.  Click flash bios
5.  Press Enter to start flashing. During the process, you are advised not to turn off the computer.
6.  When the update finishes, the computer will automatically reboot for the changes to take effect.


Summary of changes
==================
General Information:
15CN35WW
1.Improve the battery charge process.

15CN34WW
1.Disabled the annoying beep when battery below 10%.


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.

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