Inspiron One 2020 System BIOS A04

Inspiron One 2020 System BIOS A04

Fixes & Enhancements

1. Enable deep sleep mode in S4
2. Keep the value of Secure boot control/Boot mode/Load Legacy OPROM after loading default by F9/SetupD4/RTC load default.
3. Update BIOS Dell diagnostics to version 4220.10
4. Make screen full fit the display when boot to OS DVD and Security boot enabled.
5. Unify LAN boot message position under UEFI boot mode.
6. Simplify "Clear Secure Boot Key" item in setup menu.
7. Update Intel Management Engine Firmware to version (Hot Fix 2)
8. Update BIOS liberary for secure boot manual test after 9/16/2012.


Version A04, A04



Release date

25 Oct 2012

Last Updated

25 Oct 2012


Available formats

File Format:Windows/DOS
File Name:A04.EXE
Download Type:HTTP
File Size: 7 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.

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

Other versions
X18,X18 29 May 201210:10:16 AM
Supported Operating Systems
Windows 7, 64-bit
Windows 8, 64-bit
Applies to
Dell Inspiron One 2020
Installation instructions
Please execute A04.EXE under DOS or Windows to update system BIOS. Do not remove adapter or shutdown computer during update process. You need to restart your computer when the update is completed.
Warning: Do not turn off your computer or disconnect from your power source while updating the BIOS or you may harm your computer. During the update, your computer will restart and you will briefly see a black screen.

This driver has been tested by both the independent software vendor (ISV) and Dell on the operating systems, graphics cards, and application supported by your device to ensure maximum compatibility and performance. Details

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).