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 Inspiron 3481, 3581, 3584, 3781 KBL System BIOS and Dell Vostro 3481, 3581, 3584 KBL 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 for Dell Inspiron 3481, 3581, 3584, 3781, Dell Vostro 3481, 3581, and 3584 systems that run the Windows operating system. BIOS is a firmware that is embedded on a small memory chip on the computer's system board. It controls the keyboard, monitor, disk drives and other devices. It includes the updated video BIOS to support new video memory. This update addresses the Intel security advisory INTEL-SA-00185 and INTEL-SA-00191.
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Fixes & Enhancements

Fixes:
- Firmware updates to address security advisory INTEL-SA-00185 (CVE-2018-12188 CVE-2018-12190 CVE-2018-12191 CVE-2018-12192 CVE-2018-12199 CVE-2018-12198 CVE-2018-12200 CVE-2018-12187 CVE-2018-12196 CVE-2018-12185).
- Firmware updates to address security advisories INTEL-SA-00191(CVE-2018-12201, CVE-2018- 12202, CVE-2018-12203).
- Fixed an issue with Secure Boot Option ROM Signature Verification.

Enhancements:
- Improved the user experience in the 3Dmark benchmarking tool stress test.
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Version

1.2.0, 1.2.0

Release date

20 Mar 2019

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.
Available formats
File Format: CPG BIOS Executable for Windows/DOS
File Name: Inspiron_Vostro_3481_120.exe
File Size: 7.05 MB
This is a large file. Depending on your connection speed, it may take some time to download.
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:
31cf6872253f075b0b65386269d829e3
SHA1:
a518c7b24ca15c526356ff63ac6c237d3b4f283c
SHA-256:
229f0e5b3d504fd296cf5d60d6ff5ee59c1843fe3820c8a9d002603f9500b8e0
File Format: BIOS Recovery Image File
File Name: BIOS_IMG.rcv
File Size: 7.04 MB
This is a large file. Depending on your connection speed, it may take some time to download.
Format Description:
This file format consists of a BIOS Recovery image file. This file is used for the System BIOS Recovery process to recover a system from a corrupted BIOS.
To ensure the integrity of your download, please verify the checksum value.
MD5:
2a8041cc482971de24b9df0649490d34
SHA1:
29a018f4ae43b145fc7ce73952f9db79beff3d58
SHA-256:
7479e022c6b4eb402a0491911794babb88e6c464ef5e65420acecfc41ae432d7

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

Additional details

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Vostro VEGAS INTEL series System BIOS
Note 1: Before updating the BIOS, ensure that you suspend BitLocker encryption on a BitLocker-enabled system. If BitLocker is not enabled on your system, you can ignore this step.
Note 2: Do not turn off the power or interrupt the BIOS update process during the update.

BIOS Update Executable for Windows

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 file.
4. Click Yes to open the BIOS update utility.
5. Click Update to initiate the update process. A progress bar is displayed.
6. Click Restart to restart the system once the progress bar reaches 100%.
The update process initiates at the Dell logo and an update initiation message is displayed with a progress bar. The system shuts down after the update is complete.

Updating the BIOS from the BIOS Boot Menu (independent of operating system)

1. Copy the downloaded file to a USB drive. The USB drive does not need to be bootable device.
2. Insert the USB drive into any USB port.
3. Power on the system.
4. At the DELL logo screen, press F12 to access the one-time boot menu.
5. Select BIOS Flash Update in the Other Options section.
6. Click the ... button to browse the USB drive to locate the downloaded file.
7. Select the file and click Ok.
8. Verify the existing system BIOS information and the BIOS update information.
9. Click Begin Flash Update.
10. Review the Warning message and click Yes to proceed with the update.
The system restarts and displays a Flash Progress bar at the Dell logo screen. The system restarts again when the Flash update is complete.

Need help with BIOS issues?

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

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