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 7275 and XPS 12 9250 System BIOS

Restart required AUTO 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. This update addresses the Intel Security Advisories INTEL-SA-00086 and INTEL-SA-00101. 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

- Updated Intel ME Firmware to address security advisories INTEL-SA-00086 (CVE-2017-5705, CVE-2017-5708, CVE-2017-5711 & CVE-2017-5712) and INTEL-SA-00101 (CVE-2017-13077, CVE-2017-13078 & CVE-2017-13080).
- Updated the handling of pre-boot authentication information by firmware.
- Updated UEFI variable input validation.
- Updated the handling of 3rd party Option ROM loading.
- Updated SPI flash command configuration settings.
- Update to the latest CPU microcode to address CVE-2017-5715.
Read More

Version

1.1.34, 1.1.34

Release date

06 Feb 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: XPS_9250_Latitude_7275_1.1.34.exe
File Size: 12.82 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:
b94cc2ce8e706dbe87224776234cd1d8
SHA1:
41f783b4e2b121fc1bb1386022dc87209c31f6d7
SHA-256:
d7a62346a35dc3a78ce15b910067dce70a18577c5451b0d1afea7c9436fa4736

File Format: External release notes
File Name: XPS_9250_Latitude_7275_1.1.34.txt
File Size: 14.43 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:
fa5d8211d98e23d3f8a0fe4205a6ba79
SHA1:
f49c220bdf5f2cdf3d768951d018af3f0a50fce2
SHA-256:
4ccecc04ead667fc20d5cba25620d6fc5c3d0c5541d41f628c39bf6365840524

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

Additional details

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- Do not downgrade to any version before 1.1.23 as the system would not turn on with the new system memory due to the system memory material modification.
DELL Latitude 7275
XPS 12 9250
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_7275_X.Y.Z.exe
Where C is the drive letter of the USB device where the executable file is located and Latitude_7275_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.

Need help with BIOS issues?

Find a solution in Dell's BIOS troubleshooting and usage guide.

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