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_7400_2-in-1_1.7.2.exe
File size: 23.27 MB
To ensure the integrity of your download, please verify the checksum value.
MD5: dd6e1e4f52cefa1b0df2ce59d0d0c663
SHA1: 46555f91865b44f6279c8faf1e725fd3511513dc
SHA-256: 6d86b78205f6398f0a789598b0580ba52bcb615611e449a9283df4bf17973baa
Fixes & Enhancements
Fixes:
- Firmware updates to address the Intel Security Advisory INTEL-SA-00307 (CVE-2019-14598).
- Firmware updates to address the Intel Security Advisory INTEL-SA-00240 (CVE-2019-0151).
- Firmware updates to address the Intel Security Advisory INTEL-SA-00164 (CVE-2019-0184).
- Firmware updates to address the Intel Security Advisory INTEL-SA-00289 (CVE-2019-11157)
- Firmware updates to address the Intel Security Advisory INTEL-SA-00317 (CVE-2019-14607).
- Fixed the issue where the Express Charge option is not shown in Dell Power Manager.
- Fixed the issue where the system sets default value of SupportAssist OS recovery to disable.
- Fixed the issue where the system is not able to update the BIOS from BIOS Boot Menu with SMM Security Mitigation enabled.
Enhancement:
- Updated the BIOS warning message that is displayed when an AC adapter with low wattage is connected to the system.
- Updated the Enhanced Pre-Boot System Assessment (ePSA) firmware.
- Updated the Intel Management Engine firmware.
- Updated the Dell Firmware Update Utility.
Important Information
- 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.
- Once the BIOS is upgraded, you cannot downgrade BIOS EXE/ Recovery (RCV) to the versions before 1.6.0. BIOS downgrades are restricted when there are security updates and important fixes with earlier versions that impact the functionality of the system.
- If you need to downgrade to an older BIOS version, you may follow any one of the below steps,
1. Use BIOS Flash Update in the F12 Boot menu to downgrade the BIOS.
2. Disable the SMM Security Mitigation option from BIOS setup menu before to attempt the downgrade in Windows operating system.
Supported Operating Systems
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. Download and Installation
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.
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.
Applies to
Dell Latitude 7400 2-IN-1