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 E6420 System BIOS

Restart required 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.
This package provides the Dell System BIOS update and is supported on Latitude E6420 / E6420 ATG model running the following Operating Systems: Windows and DOS.
To view all drivers for your Latitude E6420, go to Drivers and downloads.
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Latitude_E6420_E6420ATG_A24.exe | 5.92 MB
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File Format: CPG BIOS Executable for Windows/DOS
File Name: Latitude_E6420_E6420ATG_A24.exe
File Size: 5.92 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:
81267f7812084285e0ca8b7d2219022b
SHA1:
edbc7fca846822ae56f9c5ca1da56ae6bb818cf9
SHA-256:
5b561f3a68c0f2beaa484dbd6af570009ba05f8d8aed5ba0c7d300d5461082e1

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

Fixes & Enhancements

Fixes:
- Updated Intel ME Firmware to address security advisory CVE-2017-5689 / INTEL-SA-00075.

Enhancements :
- Not applicable.
Read More

Version

A24, A24

Release date

23 May 2017

Download Type

System BIOS

Category

BIOS

Importance

Critical
Dell Technologies highly recommends applying this important update as soon as possible. The update contains critical bug fixes and changes to improve functionality, reliability, and stability of your Dell system. It may also include security fixes and other feature enhancements.

Additional details

Show All | Hide All
A2527 Mar 2018
A2319 Jan 2016
A2230 Sep 2015
A2123 Dec 2013
A1916 Jul 2013
A1722 Mar 2013
A1611 Jan 2013
A1528 Sep 2012
A1429 Aug 2012
A1311 Jun 2012
A1207 Mar 2012
Dell Latitude E6420/E6420
BIOS Update Executable for Windows/DOS

Download
1. Click Download File, to download the file.
2. When the File Download window appears, click Save to save the file to your hard drive.

Run the BIOS update utility from Windows environment
1. Browse to the location where you downloaded the file and double-click the new file.
2. Windows System will auto restart and update BIOS while system startup screen.
3. After BIOS update finished, system will auto reboot to take effect.

Run the BIOS update utility from DOS environment (Non-Windows users)
1. Copy the downloaded file to a bootable DOS USB key.
2. Power on the system, then Press F12 key and Select "USB Storage Device" and Boot to DOS prompt.
3. Run the file by typing copied file name where the executable is located.
4. DOS System will auto restart and update BIOS while system startup screen.
5. After BIOS update finished, system will auto reboot to take effect.

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Note 1: You will need to provide a bootable DOS USB key. This executable file does not create the DOS system files.
Note 2: Please make sure you suspend BitLocker encryption before updating BIOS on a BitLocker enabled system.
If you don't enable BitLocker on your system you can ignore it.

Need help with BIOS issues?

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

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