Dell Latitude E5420 System BIOS

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.

Driver Id : R314783

Importance : Recommended

Version : A03, A03 Latest version Recommended version Latest and Recommended version

Release Date : 18 Oct 2011

Download Type : System BIOS

Category : BIOS

This package provides the Dell System BIOS update and is supported on Dell Latitude E5420 for Windows and DOS Operating Systems.

Download Files

File Format: 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.

File Name: E5420A03.exe

File size: 2.81 MB

To ensure the integrity of your download, please verify the checksum value.

MD5: f98784abf405ebff56b229dee8b05642

Download .EXE

Fixes & Enhancements

Fixes - Fixed some express cards fail to be detected issue - Fixed Hard Drives encryption issue in ATA mode - Fixed some keyboard with USB Hub not accessible during POST - Fixed issue where disabling webcam stops microphone from working - Fixed issue where battery temperature sensor throttling CPU at high temperature when external power - Fixed issue where Video memory size limited to 256MB in WinXp - Fixed issue where Free Fall Sensor protection doesn't work after resuming from S3 - Fixed issue where TPM measurements were not correct when authenticating via PBA Enhancements - Updated Intel ME Firmware to 7.1.20.1119 - Added support for Signed Firmware Update Transition BIOS

Installation instructions

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. -------------------------------------------------------------------------------- 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.

Dell Latitude E5420 System BIOS

Download Files

Fixes & Enhancements

Compatible Systems

Supported Operating Systems

Installation instructions