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 contains the BIOS update for Dell Latitude E6420 and is supported on Latitude E6420 that runs Windows and DOS operating systems. BIOS is a firmware that is embedded on a small memory chip on the system board. It controls the keyboard, monitor, disk drives and other devices. This package addresses the Intel Security Advisory INTEL-SA-00115 (CVE-2018-3639 & CVE-2018-3640).
Recommended
Find the best download for your system
Please enter your product details to view the latest driver information for your systemSearch 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.
Sign in to Windows as an admin to use automatic scan. If your're already signed in as an admin and seeing this message, please reboot. Your system is managed by your IT admin and features might be limited.
Find more updates. Use SupportAssist to find all the latest driver updates for your device.
Fixes & Enhancements
Fixes:
- Updated CPU microcode to address security advisory Intel Security Advisory INTEL-SA-00115 (CVE-2018-3639 & CVE-2018-3640).
Enhancements:
- N/A
Read More- Updated CPU microcode to address security advisory Intel Security Advisory INTEL-SA-00115 (CVE-2018-3639 & CVE-2018-3640).
Enhancements:
- N/A
Version
A26, A26
Release date
17 Jan 2019
Download Type
System BIOS
Category
BIOS
Importance
CriticalDell 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.
Available formats View Important Information
File Format: CPG BIOS Executable for Windows/DOS
File Name: Latitude_E6420_E6420ATG_A26.exe
File Size: 5.86 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:
e469e5edab5d6470d1db5e2ef601f938
SHA1:
4387593c185e5b36e805590fbf383d864062a210
SHA-256:
45b6f0b37e694f67fbba54c7ff6cd82ff381050df85bb95d8727c87c04756c6f
By downloading, you accept the terms of the Dell Software License Agreement.
Important Information
Note:
- If BIOS version A04 or any previous version is installed on your system, then update to version A05 before installing the latest version. You can download version A05 from www.dell.com/support/home/us/en/19/Drivers/DriversDetails?driverId=G10JR.
- If BIOS version A05 or any version between A05 and A08 is installed on your system, then update to version A08 before installing the latest version. You can download version A08 from www.dell.com/support/home/us/en/19/Drivers/DriversDetails?driverId=CNH63.
- If BIOS version A04 or any previous version is installed on your system, then update to version A05 before installing the latest version. You can download version A05 from www.dell.com/support/home/us/en/19/Drivers/DriversDetails?driverId=G10JR.
- If BIOS version A05 or any version between A05 and A08 is installed on your system, then update to version A08 before installing the latest version. You can download version A08 from www.dell.com/support/home/us/en/19/Drivers/DriversDetails?driverId=CNH63.
Applies to
Dell Latitude E6420/E6420
Installation instructions
Updating the BIOS from Windows
Note 1: Before updating the BIOS, ensure that you suspend BitLocker encryption on a BitLocker-enabled system. If BitLocker is not enabled on your system, you can ignore this step.
Note 2: Do not turn off the power or interrupt the BIOS update process during the update.
Download and Installation
1. Click Download File, to download the file.
2. Click Save to save the file to your hard drive
3. Browse to the location where you downloaded the file and double-click the new file.
The system restarts automatically and updates the BIOS at the system startup screen. After the BIOS update is complete, system restarts again.
Updating the BIOS from DOS (Non-Windows users)
Note 1: Before updating the BIOS, ensure that you suspend BitLocker encryption on a BitLocker-enabled system. If BitLocker is not enabled on your system, you can ignore this step.
Note 2: Do not turn off power or interrupt the BIOS update process during the update.
Installation
Note: You must provide a bootable USB drive. This executable file does not create the DOS system files.
1. Copy the downloaded file to a bootable USB drive.
2. Power on the system and then Press the F12 key.
3. Select USB Storage Device and boot to the DOS prompt.
4. Run the file by typing following command. For example:
C:\ Precision_5530_X.Y.Z.exe
Where C is the drive letter of the USB device where the executable file is located and Precision_5530_X.Y.Z.exe is the name of the downloaded file.
The system restarts automatically and updates the BIOS at the system startup screen. After the BIOS update is complete, system restarts again.
Note 1: Before updating the BIOS, ensure that you suspend BitLocker encryption on a BitLocker-enabled system. If BitLocker is not enabled on your system, you can ignore this step.
Note 2: Do not turn off the power or interrupt the BIOS update process during the update.
Download and Installation
1. Click Download File, to download the file.
2. Click Save to save the file to your hard drive
3. Browse to the location where you downloaded the file and double-click the new file.
The system restarts automatically and updates the BIOS at the system startup screen. After the BIOS update is complete, system restarts again.
Updating the BIOS from DOS (Non-Windows users)
Note 1: Before updating the BIOS, ensure that you suspend BitLocker encryption on a BitLocker-enabled system. If BitLocker is not enabled on your system, you can ignore this step.
Note 2: Do not turn off power or interrupt the BIOS update process during the update.
Installation
Note: You must provide a bootable USB drive. This executable file does not create the DOS system files.
1. Copy the downloaded file to a bootable USB drive.
2. Power on the system and then Press the F12 key.
3. Select USB Storage Device and boot to the DOS prompt.
4. Run the file by typing following command. For example:
C:\ Precision_5530_X.Y.Z.exe
Where C is the drive letter of the USB device where the executable file is located and Precision_5530_X.Y.Z.exe is the name of the downloaded file.
The system restarts automatically and updates the BIOS at the system startup screen. After the BIOS update is complete, system restarts again.
Need help with BIOS issues?
Find a solution in Dell's BIOS troubleshooting and usage guide.Drivers help and tutorials
For more downloads go to the Drivers and downloads. For help on using the information on this page, please visit Driver Help and Tutorials.