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 9420 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.
Recommended

Check compatibility

Enter your Dell Service Tag or model

Want to look up your product? Enter a product identifier. Show me how

This driver is not compatible

This driver is not applicable for the selected product. Choose another product to re-enter your product details for this driver or visit the Product Support page to view all drivers for a different product.

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-2024-030. For more information, see Dell Security Advisories and Notices.
- Fixed the issue where the system stops responding at the BIOS Auto-Recovery screen when you update the BIOS.
- Fixed the issue where the USB Type-C device is not detected when you connect it to the system.
Read More

Version

1.28.0, 1.28.0

Release date

13 Mar 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.
Available formats View Important Information
File Format: CPG BIOS Executable for Windows/DOS
File Name: Latitude_9420_1.28.0.exe
File Size: 24.81 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:
2df79eda75a73c6e6397aee1297396c9
SHA1:
a9ad45a83d7d99b0e4d4b0afd0e70f801fd67d2b
SHA-256:
80b3044bed5ef4da8ec013d98c6fcaaf99ecdc91168ef89ee235d4de3b185d5c
File Format: BIOS Recovery Image File
File Name: BIOS_IMG.rcv
File Size: 24.81 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:
2df79eda75a73c6e6397aee1297396c9
SHA1:
a9ad45a83d7d99b0e4d4b0afd0e70f801fd67d2b
SHA-256:
80b3044bed5ef4da8ec013d98c6fcaaf99ecdc91168ef89ee235d4de3b185d5c
File Format: External release notes
File Name: Third-party License.txt
File Size: 1.17 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:
fcf94f322af0e9ea2c8e7653119f536e
SHA1:
38221f0be18db3b392359d21beda45372a48f723
SHA-256:
6712dba91fdc70396b373e98587ec4669e8c8b0e24e1bcda8dce94e11c96abd4

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

Additional details

Show All | Hide All
- Once the BIOS is upgraded, you cannot downgrade the BIOS EXE/Recovery (RCV) to versions earlier than 1.24.0 due to restrictions. 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.
Dell Latitude 9420
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 file.
5. Click Yes to open the BIOS update utility.
6. Click Update to initiate the update process. A progress bar is displayed.
7. 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. After the update finishes, the system automatically restarts.

Need help with BIOS issues?

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

Drivers help and tutorials