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.

Before updating the BIOS, please suspend BitLocker encryption. If it is not enabled on your system, you can skip this step. Learn more

Dell XPS 15 9550 A06 System BIOS

Restart required
XPS 15 9550 01.02.00 BIOS

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The driver information is up-to-date. To view all drivers for your XPS 15 9550, go to Drivers & Downloads.

Fixes & Enhancements

1. Improved the system stability
2. Fixed system may not able to boot with external monitor with lid closed
3. Fixed USB audio/mouse may be lag while connecting to Dell Thunderbolt Dock (TB15) and Dell Dock (WD15)
4. Fixed Fan may be noisy while connecting to Dell Thunderbolt Dock (TB15) and Dell Dock (WD15)
5. Fixed Bitlocker Malfunction or Keeps Prompting Recovery Key every time reboot


Version 01.02.00, 01.02.00



Release date

12 Apr 2016

Last Updated

12 Apr 2016


Available formats

File Format: Windows/DOS
File Name: XPS_9550_1.2.0.exe
Download Type: HTTP
File Size: 9.21 MB
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.

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

XPS 15 9550 System BIOS
Reboot will be required

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