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_E7x70_1.4.2.exe
File size: 9.02 MB
To ensure the integrity of your download, please verify the checksum value.
MD5: 2a749f6df2ec7d6d87f8f11c882075e9
SHA1: 37f645f36487c7ea38ab2c04756db7ea2ac722e1
SHA-256: 4c3db81b5894116a51acef56e86fd0b5078da085535ee4f6bd7ceb64c1492dbc
Fixes & Enhancements
Fixes:
- Fixed the issue where the system is unable to switch to an external monitor. This issue occurs when you close the lid after pressing F2 or F12 key while booting.
- Fixed the issue where the system does not resume from Hibernation mode when an SD card is connected to the system. This issue occurs on systems with Windows operating system.
Enhancements:
- Updated the Intel Processor Micro Code.
- Updated the Embedded Controller Engine Firmware.
Important Information
Once the BIOS is updated, you cannot downgrade it to a version before 1.3.0.
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 it 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.
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 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 DOS (Non-Windows users)
Note 1: Before updating the BIOS, ensure that you suspend BitLocker encryption on a BitLocker-enabled system. If it 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.
Installation
Note: You must provide a bootable USB drive. This executable file does not create the DOS system files.
1. Copy the downloaded file to a bootable USB drive.
2. Power on the system and then Press the F12 key.
3. Select USB Storage Device and boot to the DOS prompt.
4. Run the file by typing following command. For example:
C:\ Latitude_E7270_X.Y.Z.exe
Where C is the drive letter of the USB device where the executable file is located and Latitude_E7270_X.Y.Z.exe is the name of the downloaded 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 DOS with UEFI boot mode enabled (Non-Windows users, Load Legacy Option Disabled)
Note 1: Before updating the BIOS, ensure that you suspend BitLocker encryption on a BitLocker-enabled system. If it 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.
Installation
1. Copy the downloaded file to a bootable DOS USB drive.
2. Power on the system and then go to BIOS Setup by pressing the F2 key.
3. Go to General > Boot Sequence > Boot > Boot List Option.
4. Change UEFI to Legacy of Boot List Option.
5. Go to Exit > Save Changes and reboot system.
6. Press F12 and then select USB Storage Device and boot to the DOS prompt.
7. Run the file by typing the file name.
The system restarts automatically and updates the BIOS at the system startup screen. After the BIOS update is complete, the system restarts again.
8. Go to BIOS Setup by pressing the F2 key and go to General > Boot Sequence > Boot > Boot List Option.
9. Change Legacy to UEFI Boot Option.
10. Go to Exit > Save Changes, and reboot the system.
Applies to
Dell Latitude E7270
Dell Latitude E7470