Dell Latitude 5420 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.

Driver Id : R9YMW

Importance : Recommended

Version : 1.33.0, 1.33.0 Latest version Recommended version Latest and Recommended version

Release Date : 19 Dec 2023

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.

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_5420_1.33.0.exe

File size: 44.22 MB

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

MD5: dac20b85ee84b087e639e6ac8425e777

SHA1: 01359cb61bba44a764577bb013e984c23c5073e0

SHA-256: d98aec3ceb583ae861e5a1eed0b993e2713d2b69acc902c59fea7d7f7311c93b

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: 44.22 MB

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

MD5: dac20b85ee84b087e639e6ac8425e777

SHA1: 01359cb61bba44a764577bb013e984c23c5073e0

SHA-256: d98aec3ceb583ae861e5a1eed0b993e2713d2b69acc902c59fea7d7f7311c93b

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

- Fixed the issue where the internal panel does not work when the system enters or exit sleep mode. This issue occurs when the graphics driver is not installed in the system.
- 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 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 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 stops responding during Power-On Self-Test (POST). This issue occurs when the NVMe or Trusted Platform Module firmware is interrupted while updating the firmware.

Important Information

- Intel discontinues the non-TLS network communication support for Intel Active Management Technology (AMT) and Intel Standard Manageability. For more information, see Non-TLS EOL for Intel AMT and Intel Standard Manageability.
- Once the BIOS is upgraded, you cannot downgrade the BIOS to version 1.29.0 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.

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 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. 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 progress bar at the Dell logo screen. The system restarts again when the update is complete.

Dell Latitude 5420 System BIOS

Download Files

Fixes & Enhancements

Important Information

Compatible Systems

Supported Operating Systems

Installation instructions

Applies to