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 7280/7380/7480 System BIOS

Restart required 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 provides the Dell System BIOS update and is supported on Dell Latitude 7280/7380/7480 for Windows Operating System.
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Fixes & Enhancements

Fixes
- Fixed WLAN Intel 8265 data transmission issue.
- Fixed NVMe SED (AHCI mode) booting issue when DELL DDP|E Pre-Boot Authentication is activated.
- Fixed Dell Thunderbolt dock (TB16) missing issue with 180W power adapter.
- Fixed system slow POST out of BIOS setup when SATA mode is in AHCI mode.
- Fixed integrity chaining enforcement for Intel Boot Guard
- Resolved video flicker issue for Linux OSes with Intel Skylake CPU
- Resolved USB headset audio issue with Dell Thunderbolt dock. (TB16)

Enhancements
- Updated Absolute BIOS Persistence module.
- Updated Embedded Controller Engine Firmware.
- Updated CPU microcode.
- Added support to 13 inch model.
Read More

Version

1.5.8, 1.5.8

Release date

16 Aug 2017

Download Type

System BIOS

Category

BIOS

Importance

Optional
Dell Technologies recommends reviewing this update to determine if it applies to your system. The update contains changes that impact only certain configurations or provides new features that may or may not apply to your environment.
Available formats
File Format: CPG BIOS Executable for Windows/DOS
File Name: Latitude_7x80_1.5.8.exe
File Size: 9.57 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. The Universal (Windows/MS DOS) format can be used to install from any Windows or MS DOS environment.
To ensure the integrity of your download, please verify the checksum value.
MD5:
3b690d9de280c1ca25ea74bdb0919415
SHA1:
3feba4b938dcb1f4687a5210b817d30393fed90e
SHA-256:
e7aad33a1208401e55083778c95f84a589d33a360ada83b7ca0acfd30d80c5d9

By downloading, you accept the terms of the Dell Software License Agreement.

Additional details

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Dell Latitude 7X80
BIOS Update Executable for Windows

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.

Note : 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.

Need help with BIOS issues?

Find a solution in Dell's BIOS troubleshooting guide

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