Dell Inspiron 5459/5559/5759 SKL System BIOS

Restart required

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.

hi testing

Driver Id : DX88T

Importance : Critical

Version : 1.4.1, 1.4.1 Latest version Recommended version Latest and Recommended version

Release Date : 09 May 2018

Download Type : System BIOS

Category : BIOS

This package provides the BIOS update for Dell Inspiron 5459/5559/5759 running the following Operating Systems: Windows and DOS.

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: Inspiron5459_141.exe

File size: 6.6 MB

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

MD5: 91ef45ecbbdb04c33e2b4498e388b36b

SHA1: b8a593521863eb9788ad400d6bc2cb064ae43451

SHA-256: 5cdb2977cb7d001e0edf823f2c995bcefb8374f7c48cc5eef868e13fc56e14a7

Download .EXE

Fixes & Enhancements

Fixes:
- Updated chipset SPI flash configuration.
- Updated TPM Platform Authentication Handling.
- Updated UEFI variable input validation.
- Updated the handling of 3rd party Option ROM loading.
- Updated SPI flash command configuration settings.
- Updated Intel ME Firmware to address security advisory INTEL-SA-00086 (CVE-2017-5705 & CVE-2017-5708).
- Update to the latest CPU microcode to address CVE-2017-5715.

Enhancements:
- Not Applicable.

Installation instructions

[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 if Legacy Boot Mode(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.

[Run the BIOS update utility from DOS environment if UEFI Boot Mode (Non-Windows users,Load Legacy Option ROM Disabled)]
1. Copy the downloaded file to a bootable DOS USB key.
2. Power on the system, then go to BIOS Setup by pressing F2 and go to "Boot > Boot List Option"
3. Change "UEFI" to "Legacy" of Boot List Option
4. Go to "Exit > Exit Save Changes" and reboot system.
5. Press F12, then Select "USB Storage Device" and Boot to DOS prompt.
6. Run the file by typing copied file name where the executable is located.
7. After BIOS update finished, system will auto reboot.
8. Go to BIOS Setup by pressing pressing F2 and go to "Boot > Boot List Option"
9. Change "Legacy" to "UEFI" Boot Option.
10. Load Legacy Option ROM->Enabled
11. Go to "Exit" > Exit Save Changes and reboot system

Dell Inspiron 5459/5559/5759 SKL System BIOS

Download Files

Fixes & Enhancements

Compatible Systems

Supported Operating Systems

Installation instructions

Applies to