Download Files
File Format: 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.
File Name: Latitude_E7x70_1.13.4.exe
File size: 9.06 MB
To ensure the integrity of your download, please verify the checksum value.
MD5: a1e992e50c1376d552982a40abc44988
SHA1: 6daf6e264aa9b6d4e564e5e15c50d88b4ce85dc1
SHA-256: 3e5e9df265391baaa636190073de410efac112e1a355e0fae37eb60d30b3eede
Fixes & Enhancements
Fixes
- Corrected SMBIOS version.
- Fixed incorrect WWAN device status in BIOS setup menu.
- Fixed legacy E-dock behavior when power on system with LID close.
- Fixed "Clear TPM" Option sometimes will be greyed out in BIOS setup.
- Fixed issues about Win10 Enterprise Device Guard and Credential Guard related features
- Fixed "Enable Attempt Legacy Boot" cannot be enabled in BIOS setup.
Enhancement
- Updated Embedded Controller Engine Firmware.
- Updated Realtek USB LAN firmware.
- Update BIOS Setup Layout/Wording Change.
- Improved boot time at no Intel Management Engine support environment.
Supported Operating Systems
Installation instructions
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BIOS Update Executable for Windows/DOS
Download
1. Click Download File to download the file.
2. When the File Download window appears, click Save to save the file to your hard drive.
Run the BIOS update utility from Windows environment
1. Browse to the location where you downloaded the file and double-click the new file.
2. Windows System will auto restart and update BIOS while system startup screen.
3. After BIOS update finished, system will auto reboot to take effect.
Run the BIOS update utility from DOS environment if Legacy Boot Mode(Non-Windows users)
1. Copy the downloaded file to a bootable DOS USB key.
2. Power on the system, then Press F12 key and Select "USB Storage Device" and Boot to DOS prompt.
3. Run the file by typing copied file name where the executable is located.
4. DOS System will auto restart and update BIOS while system startup screen.
5. After BIOS update finished, system will auto reboot to take effect.
Run the BIOS update utility from DOS environment if UEFI boot mode with Load Legacy Option disabled (Non-Windows users)
1. Copy the downloaded file to a bootable DOS USB key.
2. Power on the system, then go to BIOS Setup by pressing F2 and go to "General-Boot Sequence - Boot List Option".
3. Change "UEFI" to "Legacy" of Boot List Option.
4. Click "Apply","Exit" to save changes and reboot system.
5. Press F12, then Select "USB Storage Device" and Boot to DOS prompt.
6. Run the file by typing copied file name where the executable is located.
7. DOS system will auto restart and update BIOS while system startup screen.
8. After BIOS update finished, system will auto reboot.
9. Go to BIOS Setup by pressing F2 and go to "General > Boot Sequence > Boot List Option".
10. Change "Legacy" to "UEFI" Boot Option.
11. Go to "Exit > Exit Save Changes" and reboot system.
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Note 1: You will need to provide a bootable DOS USB key. This executable file does not create the DOS system files.
Note 2: Please make sure you suspend BitLocker encryption before updating BIOS on a BitLocker enabled system.
If you don't enable BitLocker on your system you can ignore it.
Applies to
Dell Latitude E7270
Dell Latitude E7470