Dell Vostro 3449/3549 System BIOS

Restart required

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.

Driver Id : KDX3N

Importance : Recommended

Version : A09, A09 Latest version Recommended version Latest and Recommended version

Release Date : 13 Jul 2017

Download Type : System BIOS

Category : BIOS

This package contains the Dell system BIOS update. BIOS is a firmware package that is embedded on a small memory chip on the system board. It controls the keyboard, monitor, disk drives, and other devices.

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File Format: 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.

File Name: 3449A09.EXE

File size: 5.9 MB

To ensure the integrity of your download, please verify the checksum value.

MD5: b3e1da827e9607d1812c142d4d720218

SHA1: 3dfed86b33125d3c13d50f9eb1a1b8018ff14c92

SHA-256: cdab8e729148df169531e30dc6d7dd53642091919442408eae6f9d7db74fae99

Download .EXE

Installation instructions

Updating the BIOS from Windows

Note 1: Before updating the BIOS, ensure that you suspend BitLocker encryption on a BitLocker-enabled system. If BitLocker 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.

Download and Installation
1. Click Download File.
2. Click Save to save the file to your hard drive.
3. Browse to the location where you downloaded the file.
4. 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.

Dell Vostro 3449/3549 System BIOS

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Fixes & Enhancements

Compatible Systems

Supported Operating Systems

Installation instructions

Applies to