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 3891 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 package that is embedded on a small memory chip on the system board. It controls the keyboard, monitor, disk drives, and other devices. This update addresses the Dell Security Advisories (DSA). A security advisory is a statement when a security vulnerability impacts a product, and a remedy is available for the vulnerability.
To view all drivers for your Inspiron 3891, go to Drivers and downloads.
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Inspiron_3891_1.24.0.exe | 22.62 MB
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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: Inspiron_3891_1.24.0.exe
File Size: 22.62 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:
577fd6248b7273ee72c238381b44c7d2
SHA1:
ef88e56b465641b5f645309b1d609c1d81d37d50
SHA-256:
fa1eeee34f105fbe17b2d1601746b8ce00aa1ed13351751d50f8d6e4b408bf73

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

Fixes & Enhancements

- This release contains security updates as disclosed in the Dell Security Advisory DSA-2024-066. For more information, see Dell Security Advisories and Notices.
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Version

1.24.0, 1.24.0

Release date

11 Apr 2024

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: BIOS Recovery Image File
File Name: BIOS_IMG.rcv
File Size: 22.6 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:
c4ce551885fa0eb36285168bfb977f98
SHA1:
407c589f706e0c90cfa7b30457b7ceaa1857d809
SHA-256:
46cda5f99240f8f3a219f143260dc2d85d396e9406eb90c488d8177603dd8774

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

Additional details

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- Once the BIOS is upgraded, you cannot downgrade the BIOS to version 1.13.90 or earlier. BIOS downgrades are restricted when there are security updates and important fixes with earlier versions that impact the functionality of the system.
- BIOS updates take no more than 5 minutes to be installed on your system. You can install the updates in the background while using the system.
1.23.008 Mar 2024
1.22.106 Feb 2024
1.21.113 Dec 2023
1.19.009 Aug 2023
1.18.112 Jun 2023
1.17.012 Apr 2023
1.16.008 Mar 2023
1.15.116 Feb 2023
1.15.011 Jan 2023
1.14.019 Dec 2022
1.13.011 Nov 2022
1.12.017 Oct 2022
1.11.014 Sep 2022
1.10.008 Aug 2022
1.9.112 Jul 2022
1.8.210 Jun 2022
1.7.009 May 2022
1.6.012 Apr 2022
1.5.010 Mar 2022
1.4.112 Jan 2022
1.3.109 Dec 2021
1.2.216 Nov 2021
1.0.2119 Oct 2021
1.0.2029 Sep 2021
1.0.1430 Jul 2021
1.0.1316 Jul 2021
1.0.911 May 2021
Insprion 3891
Updating the BIOS from Windows

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. 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 power or interrupt the BIOS update process during the update.
Note 3: Your system requires a restart after installing the BIOS. The restart can be deferred but must be completed to ensure that the update is installed.

Download and Installation
1. Click Download File.
2. Click Save to save the file to your hard drive.
3. Browse to the location where you downloaded the file.
4. 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.

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

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. 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.
Note 3: Your system requires a restart after installing the BIOS. The restart can be deferred but must be completed to ensure that the update is installed.

Installation
1. Copy the downloaded file to a USB drive. You do not need a bootable USB drive.
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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