Warning: Do not turn off your computer or disconnect from your power source while updating the BIOS or you may harm your computer. During the update, your computer will restart and you will briefly see a black screen.

Dell XPS 15 9550 1.9.0 System BIOS

This package contains the Dell system BIOS update version 1.9.0 for XPS 15 9550. BIOS is a firmware that is embedded on a small memory chip on the computer's system board. It controls the keyboard, monitor, disk drives and other devices. The package fixes a potential issue where system stops responding when an incorrectly formatted password is entered at the BIOS Security Manager (BIOS pre-boot password) prompt. For more information regarding fixes and enhancements click View full driver details.

Fixes & Enhancements

Fixes:
- Fixed a potential issue where system stops responding when an incorrectly formatted password is entered at the BIOS Security Manager (BIOS pre-boot password) prompt.

Enhancements:
- Enable WSMT security enhancement for Windows 10 Creators Update.
- Added TPM PPI Bypass for Clear Command support.
- Added BIOS Password Feature: Master Password Lockout.

Version

Version 1.9.0, 1.9.0

Category

BIOS

Release date

25 okt. 2018

Last Updated

25 okt. 2018

Importance

Available formats

File Format:Non-Packaged
File Name:XPS_9550_1.9.0.exe
Download Type:HTTP
File Size: 9 MB
Format Description: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.
To ensure the integrity of your download, please verify the checksum value.
MD5:
267c75e2bf48e721868ce2589a26b76f
SHA1:
8ec3446ed5a8242594bf91b8b71ee2caea6d734c
SHA-256:
fdd2f91b3b907bdde22d0664f3fe0e4d8b9ed4a2b75428f809c12241c3354e82

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

Version
1.8.0,1.8.0 05 okt. 20186:03:40
1.7.0,1.7.0 04 máj. 20186:46:17
1.6.1,1.6.1 06 febr. 20188:35:40
1.5.1,1.5.1 14 nov. 20174:05:41
1.4.0,1.4.0 15 szept. 201711:04:11
Applies to
XPS 15 9550 System BIOS
Installation instructions
Download file to Desktop
The file XPS_9550_X.Y.Z.exe is using the Universal (Windows/DOS) format and is designed to be directly executed from Windows environment.
1. Click Download now. The File Download window is displayed.
2. Click the Save button. The Save As window is displayed.
3. Select Desktop using the drop-down menu to the right of Save in.
4. Click the Save button. A progress meter moves as the download is completed.
5. If necessary, click X in the upper right corner of the Download Progress Window to close it upon completion.

Note: Shut down all other applications before running the BIOS update utility. The update utility reboots your system for loading the new BIOS.

Run the BIOS update utility from Windows environment
1. Double-click the Icon on your desktop labeled XPS_9550_X.Y.Z.exe and the Dell BIOS Flash window is displayed.
2. Click the Continue button. A message that states Pressing OK will close all applications, shut down Windows, Flash the BIOS and then reboot is displayed.
3. Click the OK button. The system restarts to complete the update process.

Run the BIOS update utility from DOS environment (Non-Windows users)
Note: You must provide a bootable DOS diskette. This executable file does not create the DOS system files.
1. Copy the file XPS_9550_X.Y.Z.exe to a bootable USB drive.
2. Boot from the USB drive to the DOS prompt.
3. Run the file by typing A:\ XPS_9550_X.Y.Z.exe (where A is the drive letter where the executable file is located).
x
Warning: Do not turn off your computer or disconnect from your power source while updating the BIOS or you may harm your computer. During the update, your computer will restart and you will briefly see a black screen.

This driver has been tested by both the independent software vendor (ISV) and Dell on the operating systems, graphics cards, and application supported by your device to ensure maximum compatibility and performance. Details

Dell highly recommends applying this update as soon as possible. The update contains changes to improve the reliability and availability of your Dell system.