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 1.2.21 System BIOS

XPS 15 9550 1.2.21 BIOS

Fixes & Enhancements

Fix:
1. SUT will show incorrect massage after run DG_Readinesstool_v2.0.ps1 on Enterprise OS
2. Clear TPM Option greyed out in BIOS
3. Enable Attempt Legacy Boot" cannot be enabled in BIOS
4. USB LAN and Audio of IE dock still working after disable Dell Docks and Ext. USB

Version

Version 1.2.21, 1.2.21

Category

BIOS

Release date

31 Mar 2017

Last Updated

31 Mar 2017

Importance

Available formats

File Format: Windows/DOS
File Name: XPS_9550_1.2.21.exe
Download Type: HTTP
File Size: 9.24 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:
da20e297afa1a60100cd47e9584b458c
SHA1:
622d47fb5c7a5efd6a17bed8effd8cbc926c116e
SHA-256:
b46430489b52c6e98732102166d58590d042c64e3284725f953eaad8b1de103d

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

XPS 15 9550 System BIOS

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