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 Inspiron 3721 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.
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Fixes & Enhancements

Dell Inspiron 3721 System BIOS
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Version

A05, A05

Release date

05 Feb 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: 3721A05.exe
File Size: 4.44 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:
73f78499bdef8c1a25c18267a4e75a4a
SHA1:
c86854c6b04ebc3bfc485a009e4594e76b2d0656
SHA-256:
3bff6e69d422499ee8ff9b912a2170ee8c76c0b3057d2cba531f09168c577209

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

Additional details

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Dell Inspiron 5521/5721/3521/3721 and Vostro 2521
Reboot will be required

Need help with BIOS issues?

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

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