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 XPS 15 9550 A10 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.
XPS 15 9550 01.02.10 BIOS
To view all drivers for your XPS 15 9550, go to Drivers and downloads.
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XPS_9550_1.2.10.exe | 9.12 MB
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This is a large file. Depending on your connection speed, it may take some time to download.
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File Format: CPG BIOS Executable for Windows/DOS
File Name: XPS_9550_1.2.10.exe
File Size: 9.12 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.
MD5:
2daecf70e965e46073b5785d58c24578
SHA1:
d3e0b4b1300473d98d8e1d853c7024d704d748f3
SHA-256:
87f31773d769ef9465bdf20e3a433c7dd3bbfcf44fcdfa277a030bcb549b8a00

Find more updates. Use SupportAssist to find all the latest driver updates for your device.

Fixes & Enhancements

1.Fixed Dell Thunderbolt Dock (TB15) device will lost after S3 resume
2.Fixed LCD flickering when in lowest brightness
3.Fixed After McAfee encrypted, the PCIE NVMe SSD \ SATA SSD can't boot to OS issue
4.Fixed Wake on WLAN takes a long time with Intel 1830/1820A Wireless card
5.Fixed USB audio/mouse may be lag while connected to Dell Thunderbolt Dock (TB15) and Dell Dock (WD15)
6.Support for Windows 10 Enterprise features
7.Fixed incorrect Thunderbolt security level reading from Driver
8.Fixed Touchpad may be lost after Dell Thunderbolt Dock (TB15) device connected
9. Add passthrough MAC address shows on BIOS Setup feature.
10.Fixed System will become shut-down with connected to Dell Thunderbolt Dock (TB15) after S4 Resume.
Read More

Version

01.02.10, 01.02.10

Release date

05 Jul 2016

Download Type

System BIOS

Category

BIOS

Importance

Optional
Dell Technologies recommends reviewing this update to determine if it applies to your system. The update contains changes that impact only certain configurations or provides new features that may or may not apply to your environment.

Additional details

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Please follow below steps after BIOS flash finished: (One time Job)
1. Shut Down the system then press Power button again
2. Press F2 to enter BIOS Setup menu
3. Click the "Restore settings" in right bottom side
4. Chose the BIOS Defaults then Click OK
5. Click Yes to Load BIOS Default
6. Click Exit in in right bottom side
XPS 15 9550 System BIOS
Reboot will be required

Need help with BIOS issues?

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

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