Do not turn off your computer or disconnect from the power source while updating the BIOS as this could harm your computer. During the update, your computer will restart and you may briefly see a black screen.

Before updating, please read the installation instructions and important information noted below.

Dell Latitude E6400 System BIOS, A12

AUTO INSTALLED This file was automatically installed as part of a recent update. If you are experiencing any issues, you can manually download and reinstall.
E6400 BIOS
Recommended

Find the best download for your system

Please enter your product details to view the latest driver information for your system

Search support

Enter your Dell Service Tag or model

Want to look up your product? Enter a product identifier. Show me how

This driver is not compatible

This driver is not applicable for the selected product. Choose another product to re-enter your product details for this driver or visit the Product Support page to view all drivers for a different product.

Find more updates. Use SupportAssist to find all the latest driver updates for your device.

Fixes & Enhancements

Fixes/Enhancements
------------------
1. Updated Intel(R) Active Management Technology firmware for AMT-configured systems:
- Fixed a vulnerability in which an ME-knowledgeable malicious user with local machine access could potentially exploit boundary errors in some ME application functions to gain control over those ME applications.
- Fixed a remote Denial of Service (DOS) vulnerability which a malicious user could potentially exploit to cause the reboot of a system running susceptible versions of Intel® Active Management Technology (Intel® AMT).
2. Added USB provision file format 2.0 support for Intel(R) vPro-configured systems.
3. Updated warning message when changing the SATA Operation field in BIOS Setup.
4. Added support to make Pre-Boot Authentication single sign on work with hard disk drive passwords.
5. Fixed the issue where Dell Diagnostics fan script test fails with a USB 2.0 scanner attached.
6. Fixed the issue where Dell Diagnostics LCD brightness test fails when ALS is enabled.
Read More

Version

A12, A12

Release date

11 Mar 2009

Download Type

System BIOS

Category

BIOS

Importance

Recommended
Dell Technologies recommends applying this update during your next scheduled update cycle. The update contains changes to maintain overall system health. It ensures that the system software remains current and compatible with other system modules (firmware, BIOS, drivers, and software) and may include other new features.
Available formats
File Format: CPG BIOS Executable for Windows/DOS
File Name: E6400A12.EXE
File Size: 2.8 MB
This is a large file. Depending on your connection speed, it may take some time to download.
Format Description:
This file format consists of a BIOS executable file. The Universal (Windows/MS DOS) format can be used to install from any Windows or MS DOS environment.
To ensure the integrity of your download, please verify the checksum value.
MD5:
bc7bd22f80bf0f6fee8813b4e1d95de8
SHA1:
Not available
SHA-256:
Not available

By downloading, you accept the terms of the Dell Software License Agreement.

Additional details

Show All | Hide All
Dell Latitude E6400
Installation Instructions for the Universal (Windows/ DOS) format


  1. Download file to Desktop


  2. Use one of the methods below to flash the Bios.





Download file to Desktop


The file E6400A12.EXE is using the Universal (Windows/ DOS) format and is designed to be directly executed from Windows environment.


  1. Click Download now.
    The File Download window appears.


  2. Click the Save button.
    The Save As window appears.


  3. Select Desktop using the drop-down menu to the right of Save in.


  4. Click the Save button.
    A progress meter moves as the download is completed.


  5. If necessary, click X in the upper right-hand corner of the Download Progress Window to close it upon completion.


NOTE: Shut down all other applications prior to running the BIOS update utility. The update utility reboots your system in order to get the new BIOS loaded.


Run the BIOS update utility from Windows environment


  1. Double click the Icon on your desktop labeled E6400A12.EXE.
    The Dell BIOS Flash window appears


  2. Click the Continue button.
    The message Pressing OK will close all applications, shut down Windows, Flash the BIOS, then reboot. appears.


  3. Click the OK button.
    The system will restart and the BIOS Flash will be completed.



Run the BIOS update utility from DOS environment (Non-Windows users)


NOTE: You will need to provide a bootable DOS diskette. This executable file does not create the DOS system files.

  1. Copy the file E6400A12.EXE to a bootable floppy.


  2. Boot from the floppy to the DOS prompt.


  3. Run the file by typing Y:\E6400A12.EXE (where y is the drive letter where the executable is located).






Need help with BIOS issues?

Find a solution in Dell's BIOS troubleshooting and usage guide.

Drivers help and tutorials