Driver Details

Dell XPS L421X System BIOS

Dell XPS L421X System BIOS


Version A13, A13 Other versions available
Other versions
A12,A12 11/28/2012 7:17:41 AM

A11,A11 10/22/2012 7:29:55 PM


Operating Systems
  • BIOS

Applies to

Dell XPS L421X;


Release date
Last Updated


Recommended. Dell recommends applying this update during your next scheduled update cycle. The update contains feature enhancements or changes that will help keep your system software current and compatible with other system modules (firmware, BIOS, drivers and software).

Available formats

File Format:Non-Packaged
File Name:L421XA13W.exe
Download Type:HTTP
File Size: 4MB
Format DescriptionThis 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.
Added to download list
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To ensure the integrity of your download, please verify the checksum value.

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

Installation instructions

1. Download bios file to desktop.
2. Check you've plug AC into your system.
3. Double-click the bios file on the desktop labeled L421XA13W.exe.
4. Click "Yes" to allow the following program.
5. It will extracting and reboot system to flash bios.
* please do not remove the AC power during bios flash.
6. System will restart after bios flash complete.

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