Dell Latitude 9420 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.

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Driver Id : Y2RHW

Importance : Critical

Version : 1.27.0, 1.27.0 Latest version Recommended version Latest and Recommended version

Release Date : 12 Jan 2024

Download Type : System BIOS

Category : BIOS

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.

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: Latitude_9420_1.27.0.exe

File size: 24.8 MB

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

MD5: f5a9c71097c52d4d4590c525310e8405

SHA1: 021beeb652f5e1193ca77d03f804d0d49b58890c

SHA-256: a79ec247f99ba364966a07e6e7b4fdb5cd18214fa574da2b8e4d33ba41e5874d

Download .EXE

File Format: 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.

File Name: BIOS_IMG.rcv

File size: 24.8 MB

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

MD5: f5a9c71097c52d4d4590c525310e8405

SHA1: 021beeb652f5e1193ca77d03f804d0d49b58890c

SHA-256: a79ec247f99ba364966a07e6e7b4fdb5cd18214fa574da2b8e4d33ba41e5874d

Download .RCV

File Format: This file format contains plain text which can be viewed with a standard text editor.

File Name: Third-party License.txt

File size: 1.17 KB

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

MD5: fcf94f322af0e9ea2c8e7653119f536e

SHA1: 38221f0be18db3b392359d21beda45372a48f723

SHA-256: 6712dba91fdc70396b373e98587ec4669e8c8b0e24e1bcda8dce94e11c96abd4

Download .TXT

Fixes & Enhancements

- This release contains security updates as disclosed in the Dell Security Advisories DSA-2024-036, DSA-2023-191, DSA-2023-344, DSA-2023-362, DSA-2023-364, DSA-2023-449, and DSA-2023-467. For more information, see Dell Security Advisories and Notices.
- Fixed the issue where the Admin Unlock window in the BIOS setup stops responding or the system reboots automatically. This issue occurs when you enter the wrong Master Password in the system password prompt by pressing CTRL+Enter.
- Fixed the issue where the system reboots repeatedly and stops responding at the Dell Logo. This issue occurs when a system with an NVIDIA graphics card is connected to an 8K monitor.
- Fixed the issue where the system restarts when you shut it down. This issue occurs when the system is connected to a Dell C2422HE monitor.
- Fixed the issue where the power button LED does not light up for over 40 seconds after you connect the AC adapter.
- Fixed the issue where the battery power consumption is high when the system is in Sleep mode.
- Fixed the issue where you cannot boot the system through the Dell Power Button Sync (DPBS) monitor. This issue occurs after you enable USB Power Share in the BIOS setup.
- Fixed the issue where you cannot resume the system from Sleep mode. This issue occurs when the system is connected to a dock.

Important Information

- 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.

Installation instructions

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.

Dell Latitude 9420 System BIOS

Download Files

Fixes & Enhancements

Important Information

Compatible Systems

Supported Operating Systems

Installation instructions

Applies to