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.

Dell Latitude 5290/5490/5590 System BIOS

Restart required 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.
This package contains the Dell system BIOS update. BIOS is a firmware that is embedded on a small memory chip on the system board. It controls the keyboard, monitor, disk drives, and other devices. The update addresses the Intel security advisories INTEL-SA-00125, INTEL-SA-00131 and INTEL-SA-00141. A security advisory is a statement when a product is impacted by a security vulnerability and a remedy is available.
To view all drivers for your Latitude 5590, go to Drivers and downloads.
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Latitude_5X90_1.4.2.exe | 9.94 MB
Enter the Service Tag of your device to check the compatibility of this download with your device.
This is a large file. Depending on your connection speed, it may take some time to download.
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File Format: CPG BIOS Executable for Windows/DOS
File Name: Latitude_5X90_1.4.2.exe
File Size: 9.94 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.
MD5:
097fed1f29116d5cd08ef2a689e5ceed
SHA1:
d41d30b93652c34baa33e90d407848d430124f8d
SHA-256:
96dade87fe71894b9a7ff60b11a0e9f7a02fcd5138db89378037ccb0461f81a3

Find more updates. Use SupportAssist to find all the latest driver updates for your device.

Fixes & Enhancements

Fixes:
- Fixed a potential issue with binary image measurement using the Linux UEFI shim boot loader.
- Fixed the issue where the system stops responding when an incorrectly formatted password is entered at the BIOS Security Manager (BIOS preboot password) prompt.
- Updated Intel ME Firmware to address security advisories INTEL-SA-00125 (CVE-2018-3655), Intel-SA-00131 (CVE-2018-3643 CVE-2018-3644) & INTEL-SA-00141 (CVE-2018-3657 CVE-2018-3658 CVE-2018-3616).

Enhancement:
- Updated the Embedded Controller Engine Firmware.
- Updated the Realtek USB LAN firmware.
- Added BIOS Password Feature: Master Password Lockout.
- Updated the Thermal Algorithm for performance.
- Updated the UEFI compliance level to 2.6.
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Version

1.4.2, 1.4.2

Release date

09 Aug 2018

Download Type

System BIOS

Category

BIOS

Importance

Critical
Dell Technologies highly recommends applying this important update as soon as possible. The update contains critical bug fixes and changes to improve functionality, reliability, and stability of your Dell system. It may also include security fixes and other feature enhancements.
View Important Information
File Format: External release notes
File Name: Latitude_5X90_1.4.2.txt
File Size: 5.82 KB
This is a large file. Depending on your connection speed, it may take some time to download.
Format Description:
This file format contains plain text which can be viewed with a standard text editor.
To ensure the integrity of your download, please verify the checksum value.
MD5:
5d327e142380549d8e19160964510593
SHA1:
9bc0dff97ba396d67bd48e4bfdd9ab3232449969
SHA-256:
4f585c25e1aa48e45cad2ba78f8b905535db1561e6c1da2acf0cb7947813bb24

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

Additional details

Show All | Hide All
- Once upgraded, you cannot downgrade BIOS EXE/Recovery (RCV) to the version before 1.2.3.
1.34.018 Mar 2024
1.33.020 Feb 2024
1.32.007 Dec 2023
1.31.017 Nov 2023
1.30.021 Sep 2023
1.29.010 Aug 2023
1.28.025 May 2023
1.27.124 Feb 2023
1.26.020 Dec 2022
1.25.023 Nov 2022
1.24.012 Aug 2022
1.23.014 Jul 2022
1.22.027 May 2022
1.21.002 Mar 2022
1.20.028 Jan 2022
1.19.009 Nov 2021
1.18.004 Oct 2021
1.17.030 Jul 2021
1.16.323 Apr 2021
1.16.030 Nov 2020
1.14.014 Sep 2020
1.13.106 May 2020
1.12.119 Dec 2019
1.11.111 Nov 2019
1.10.112 Sep 2019
1.9.026 Jun 2019
1.8.330 Apr 2019
1.7.023 Jan 2019
1.6.212 Dec 2018
1.5.026 Sep 2018
1.3.211 Jul 2018
1.2.317 Apr 2018
1.1.919 Mar 2018
1.0.814 Mar 2018
1.0.023 Jan 2018
Latitude 5290;Latitude 5490;Latitude 5590
Updating the BIOS from Windows

Note 1: Before updating the BIOS, ensure that you suspend BitLocker encryption on a BitLocker-enabled system. If it is not enabled on your system, you can ignore this step. For information about how to disable BitLocker, see How to Enable or Disable BitLocker with TPM in Windows at support.dell.com.
Note 2: Do not turn off the power or interrupt the BIOS update process during the update.

Download and Installation
1. Click Download File, to download the file.
2. Click Save to save the file to your hard drive.
3. Browse to the location where you downloaded the file and double-click the new file.
The system restarts automatically and updates the BIOS at the system startup screen. After the BIOS update is complete, system restarts again.

Need help with BIOS issues?

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

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