BIOS Update

NameOperating SystemVersionReleasedDownload
BIOS Update
Windows 7 32bit,
Windows 7 64bit,
Windows XP
3830 May 2012 Download
BIOS Update Readme
Windows 7 32bit,
Windows 7 64bit,
Windows XP
3830 May 2012 Download

Supported Systems

  • IdeaPad U300s

Supported Operating Systems

  • Microsoft Windows 7 32-bit, 64-bit, Windows XP

Important Information

  • 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.

Updated Information

  • System can not power on with battery only, and system can not find battery.
  • Battery charge slow in power on mode.

Downloading the package
  1. Click the file link to download the file from the web page.
  2. For Windows operation system, there is one update package available, 56cn38ww.exe. Please download the right update package.
  3. When prompted, select a drive and directory in which to save the downloaded file.

Install the package in Windows

  1. Restart computer.
  2. Locate the file 56cn38ww.exe that has been downloaded.
  3. Double click the 56cn38ww.exe.
  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.