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.

Latitude E6420 System BIOS

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.
Latitude E6420 System BIOS A14
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Fixes & Enhancements

Fixes/Enhancements
------------------
1. Addressed some hard drives detection issue.
2. Added to support a new Bluetooth device.
3. Updated to the 7.1.52.1176 version of the Intel MEFW.
4. Updated to the MOB_P_21 version of the Intel microcode patch.
5. Address the serial device not recognized issue.
6. Updated to the 75.19.17.01.05 version of the nVidia VBIOS.
7. Added to support a new panel.
Read More

Version

A14, A14

Release date

29 Aug 2012

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 View Important Information
File Format: CPG BIOS Executable for Windows/DOS
File Name: E6420A14.exe
File Size: 5.8 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:
424a18371593018cc20fb2622785defc
SHA1:
37ba218fbc640471d508a63f34ce7c2d305e4b3c
SHA-256:
c442ffe193c2e558f7239dacbb8eb6f6e682742dabfccd08a01a915866b92e54

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

Additional details

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Note:
1. Please note that if the A04 or before A04 BIOS is currently installed on your system,
you must first update to A05 BIOS and then flash to the latest A-rev BIOS.
2. Please note that if the A05 or after A05 BIOS and before A08 is currently installed on your system
you must first update to A08 BIOS and then flash to the latest A-rev BIOS.
Dell Latitude E6420/E6420

Need help with BIOS issues?

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

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