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

Restart required
Latitude E6400 System 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.

Fixes & Enhancements

Fixes/Enhancements
------------------
1. Enhance System Security.
Read More

Version

A34, A34

Release date

16 Jul 2013

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: E6400A34.exe
File Size: 2.85 MB
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:
266023fa317f2e42077755f3b67c702b
SHA1:
a24ed919e80287b281e407d525af31f307746250
SHA-256:
6cf2cd478a766fd80b3af5c3c5d95314d6dbb2c306f2e57566495854d1390596

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.

Run the BIOS update utility from Windows environment

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


--------------------------------------------------------------------------------
Download file to Desktop

The file E6400A34.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 E6400A34.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 USB key. This executable file does not create the DOS system files.

1. Copy the file E6400A34.exe to a bootable USB key.

2. Boot from the USB key to the DOS prompt.

3. Run the file by typing Y:\E6400A34.exe (where y is the drive letter where the executable is located).

--------------------------------------------------------------------------------
Note: Please make sure you suspend BitLocker encryption before updating BIOS on a BitLocker enabled system.
If you doesn't enable BitLocker on your system you can ignore it.

Reboot will be required

Need help with BIOS issues?

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

Drivers help and tutorials