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 5400, 5500 and Precision 3540 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 that is embedded on a small memory chip on the system board. It controls the keyboard, monitor, disk drives, and other devices.
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Fixes & Enhancements
- Updated the alert message that is displayed when Dell Thunderbolt Dock WD19TB is connected to systems with Non-Thunderbolt port.
- Added BIOS option to bypass the Dock warning messages.
- Updated video BIOS (VBIOS) to support new Samsung video RAM (VRAM).
Read More- Added BIOS option to bypass the Dock warning messages.
- Updated video BIOS (VBIOS) to support new Samsung video RAM (VRAM).
Version
1.4.2, 1.4.2
Release date
12 Sep 2019
Download Type
System BIOS
Category
BIOS
Importance
RecommendedDell Technologies recommends applying this update during your next scheduled update cycle. The update contains changes to maintain overall system health. It ensures that the system software remains current and compatible with other system modules (firmware, BIOS, drivers, and software) and may include other new features.
Available formats View Important Information
File Format: Flash BIOS executable
File Name: Latitude_5X00_Precision_3540_1.4.2.exe
File Size: 24.18 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. To use it, download the file and copy it to a DOS-bootable USB flash drive, then boot the system to the USB flash drive and run the program.
To ensure the integrity of your download, please verify the checksum value.
MD5:
d0062c97ccd3673aa975bc3e2c31e206
SHA1:
0c4b0bc8240c5bfa685077993d4ecb99aa5e30b3
SHA-256:
1d37d7fbbf51a5b89f5facab22cb0f9a04120516b49e252570dff746f0f2d3d4
By downloading, you accept the terms of the Dell Software License Agreement.
Important Information
Once the BIOS is upgraded, you cannot downgrade BIOS EXE/ Recovery (RCV) to the versions before 1.2.3.
Applies to
Latitude 5400;Latitude 5500;Precision 3540
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.
Note 2: Do not turn off the power or interrupt the BIOS update process during the update.
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. After BIOS update finishes, system will auto reboot to take effect.
Updating the BIOS from the 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.
Note 2: Do not turn off the power or interrupt the BIOS update process during the update.
Download and Installation
1. Click Download File, to download the file.
2. Copy the downloaded file to a USB flash device. It does not need to be bootable.
3. Insert the USB flash device into any USB port.
4. Power on the system.
5. At the DELL logo screen, press F12 to access the one-time boot menu.
6. Select BIOS Flash Update in the Other Options section.
7. Click the "..." button to browse the USB flash device to locate the downloaded file.
8. Select the file and click Ok.
9. Confirm the Existing System BIOS Information and the BIOS Update Information are as expected.
10. Click Begin Flash Update.
11. Reviewing the Warning message and click Yes to proceed with the update.
12. The system should restart and show a Flash Progress bar on the Dell logo screen as the BIOS update is being performed.
13. The system restarts once again when the Flash update is complete.
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.
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. After BIOS update finishes, system will auto reboot to take effect.
Updating the BIOS from the 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.
Note 2: Do not turn off the power or interrupt the BIOS update process during the update.
Download and Installation
1. Click Download File, to download the file.
2. Copy the downloaded file to a USB flash device. It does not need to be bootable.
3. Insert the USB flash device into any USB port.
4. Power on the system.
5. At the DELL logo screen, press F12 to access the one-time boot menu.
6. Select BIOS Flash Update in the Other Options section.
7. Click the "..." button to browse the USB flash device to locate the downloaded file.
8. Select the file and click Ok.
9. Confirm the Existing System BIOS Information and the BIOS Update Information are as expected.
10. Click Begin Flash Update.
11. Reviewing the Warning message and click Yes to proceed with the update.
12. The system should restart and show a Flash Progress bar on the Dell logo screen as the BIOS update is being performed.
13. The system restarts once again when the Flash update is complete.
Need help with BIOS issues?
Find a solution in Dell's BIOS troubleshooting and usage guide.Drivers help and tutorials
For more downloads go to the Drivers and downloads. For help on using the information on this page, please visit Driver Help and Tutorials.