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 5280/5288/5480/5488/5580 and Precision 3520 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 5280/5288/5480/5488/5580 and Precision 3520 for Windows Operating Systems.
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Fixes & Enhancements

Fixes
- Fixed incorrect Windows operating system logon message.
- Fixed system password not prompted when booting the system with NVMe SSD.
- Fixed HDD unable to pass the HDD password at first time boot
- Fixed Legacy PXE boot issue that affected the Dell USB-C Mobile Adapter - DA300.
- Fixed the internal keyboard fast typing character loss or repeating issue that occurred at very high words per minute (WPM) typing speed.

Enhancements
- Updated Intel Video BIOS.
- Supported selectable MAC Address Pass-Through feature in BIOS Setup.
- Added boot warning message when non-Thunderbolt system attached to Thunderbolt type dock.
- Enhanced SMM Security Mitigation feature
- Updated Realtek USB LAN firmware.
- Updated Embedded Controller Engine Firmware.
- Updated Thermal Algorithm .
Read More

Version

1.9.3, 1.9.3

Release date

15 Mar 2018

Download Type

System BIOS

Category

BIOS

Importance

Recommended
Dell 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

File Format: CPG BIOS Executable for Windows/DOS
File Name: Latitude_5X80_Precision_3520_1.9.3.exe
File Size: 19.45 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:
bb795b4ded9f9c1533c7bdd6598fc392
SHA1:
d06c4ac21e88428fa93e6a90485804f5abaa4b62
SHA-256:
2fb88a662545fc0310d10bd49542282af1d98366491f00cdbb064c673b2558d9

File Format: External release notes
File Name: Latitude_5X80_Precision_3520_1.9.3.txt
File Size: 9.9 KB
This is a large file. Depending on your connection speed, it may take some time to download.
Format Description:
This file format contains plain text which can be viewed with a standard text editor.
To ensure the integrity of your download, please verify the checksum value.
MD5:
c49a8f60ea1940a3fbe51e13df2db87e
SHA1:
ce1ec01f9b39f91b0d358702fcc415dcb19734b5
SHA-256:
7f91e44244864668acc999f54edd69812a7b4fa9d6926a3cfcf2e978cc165817

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

Additional details

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Latitude 5280/5480/5580, Precision 3520
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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