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 Precision 7520/7720 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 contains the Dell system BIOS update. BIOS is a firmware that is embedded on a small memory chip on the system board. It controls the keyboard, monitor, disk drives, and other devices. The update addresses the Intel Security Advisories INTEL-SA-00125, INTEL-SA-00131 and INTEL-SA-00141. A security advisory is a statement when a product is impacted by a security vulnerability and a remedy is available.
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Fixes & Enhancements

Fixes:
- Fixed the issue where the system stops responding when an incorrectly formatted password is entered at the BIOS Security Manager (BIOS preboot password) prompt.
- Fixed a potential issue with binary image measurement using the Linux UEFI shim boot loader.
- Firmware updates to address the Intel Security Advisories INTEL-SA-00125 (CVE-2018-3655), INTEL-SA-00131 (CVE-2018-3643, CVE-2018-3644), and INTEL-SA-00141 (CVE-2018-3657, CVE-2018-3658, CVE-2018-3616).

Enhancements:
- Updated UEFI compliance level to 2.6.
- Updated Intel Rapid Storage Technology (IRST) firmware.
- Added LAN with PXE Boot option to the Wake on LAN/WLAN feature.
- Added BIOS Password Feature: Master Password Lockout.
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Version

1.12.2, 1.12.2

Release date

10 Aug 2018

Download Type

System BIOS

Category

BIOS

Importance

Critical
Dell Technologies highly recommends applying this important update as soon as possible. The update contains critical bug fixes and changes to improve functionality, reliability, and stability of your Dell system. It may also include security fixes and other feature enhancements.
Available formats View Important Information
File Format: CPG BIOS Executable for Windows/DOS
File Name: Precision_7x20_1.12.2.exe
File Size: 9.71 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:
4e7826281049f225a47dc23bedb69d0c
SHA1:
5d25186a3ff98cf370da73be7c751e02b4927e88
SHA-256:
e07a5e9ce92f053b64d1d164902cdf7dc357b07d67cf51d79317f63a95cb46f3
File Format: External release notes
File Name: Precision_7x20_1.12.2.txt
File Size: 12.14 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:
c4e21b8ddc1cf5366d1a4e4f90049e41
SHA1:
3b4506fb3caecdaf4eb6eaf202c3f55261aaf730
SHA-256:
1998041888f6cdfafd2dd1b460e8410069af38afcfd4c2d3a68a4f11082657d1

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

Additional details

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- Once the BIOS is updated, you cannot downgrade it to a version before 1.4.1.
Precision 7520 system BIOS
Precision 7720 system BIOS
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.

Need help with BIOS issues?

Find a solution in Dell's BIOS troubleshooting guide

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