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 L521X System BIOS - A13

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.
Dell XPS L521X System BIOS - A13
Recommended

Find the best download for your system

Please enter your product details to view the latest driver information for your system

Search support

Enter your Dell Service Tag or model

Want to look up your product? Enter a product identifier. Show me how

This driver is not compatible

This driver is not applicable for the selected product. Choose another product to re-enter your product details for this driver or visit the Product Support page to view all drivers for a different product.

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

Version

A13, A13

Release date

04 Jan 2013

Download Type

System BIOS

Category

BIOS

Importance

Recommended
Dell Technologies recommends applying this update during your next scheduled update cycle. The update contains changes to maintain overall system health. It ensures that the system software remains current and compatible with other system modules (firmware, BIOS, drivers, and software) and may include other new features.
Available formats

File Format: Flash BIOS executable
File Name: L521XA13W.exe
File Size: 4.62 MB
This is a large file. Depending on your connection speed, it may take some time to download.
Format Description:
This 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.
To ensure the integrity of your download, please verify the checksum value.
MD5:
e1560df2ce4d3ec1abc18e7e30f13f42
SHA1:
de6f98a6574818cd05f545419149933a1c90dc59
SHA-256:
0efc75d230e1a6a572570285928843a3554e5a7fcce8cf245b93311ac5dc7f98

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

Additional details

Show All | Hide All
Dell XPS L521X
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 L521XA13W.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.

Reboot will be required

Need help with BIOS issues?

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

Drivers help and tutorials