BIOS Update for Windows 8 (32-bit, 64-bit) – IdeaPad U310, U410

NameOperating SystemVersionReleasedDownload
BIOS Update
Windows 8 32bit,
Windows 8 64bit
9909 Sep 2013 Download
Windows 8 32bit,
Windows 8 64bit
9909 Sep 2013 Download

Supported Systems

  • IdeaPad U310, U410

Supported Operating Systems

  • Windows 8 32-bit, 64-bit

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

  • Fix issue: BIOS and boot menu can't be accessd after windows recovery.

Downloading the package

  1. Click the file link to download the file from the web page.
  2. Please download the right update package according version.
  3. When prompted, select a drive and directory in which to save the downloaded file.

Install the package in Windows

    1.  Restart computer. Press Fn+F2 enter BIOS.
    2. Choose "Configurtion-> BIOS back flash" , set to Enabled.
    3. Choose "Boot-> Boot Mode", set to UEFI. save and exit.
    4. Locate the file 65cn99ww that has been downloaded.
    5. Double click the 65cn99ww For Windows 8, you may run it as administrator by right-clicking on the icon and selecting “Run as administrator”.
    6. Click YES.
    7. System will reboot and flash BIOS. During the process, you are advised not to turn off the computer.
    8. When the update finishes, the computer will automatically reboot for the changes to take effect.
    9. Press Fn+F2 to enter BIOS menu, load default setting-> save and exit.
    10. Please reboot the system again.