Driver Details

Dell Latitude E5420 System BIOS

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

Version

Version A03, A03

Compatibility

Operating Systems
  • BIOS

Applies to

Latitude E5420 System BIOS;

Date

Release date
10/18/2011
Last Updated
3/5/2014

Importance

Recommended. Dell recommends applying this update during your next scheduled update cycle. The update contains feature enhancements or changes that will help keep your system software current and compatible with other system modules (firmware, BIOS, drivers and software).

Available formats

File Format:Windows/DOS
File Name:E5420A03.exe
Download Type:HTTP
File Size: 2MB
Format DescriptionThis file format consists of a BIOS executable file. The Universal (Windows/MS DOS) format can be used to install from Windows XP, Windows 2000, NT, Windows 9X, Windows ME or a MS DOS environment.
Added to download list
Go to [{0}]
To ensure the integrity of your download, please verify the checksum value.
MD5:
f98784abf405ebff56b229dee8b05642
SHA1:
Not available
SHA-256:
Not available

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


Important Information

1. Please note that if the A01 or before A01 BIOS is currently installed on your system, you must first update to A02 BIOS and then flash to the latest Arev BIOS.

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.

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