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 7420 System BIOS

Installed This file was automatically installed as part of a recent update. If you are experiencing any issues, you can manually download and reinstall.
This package provides the BIOS for the Inspiron 7420 running the following Windows operating
systems: Windows 7, 8
Recommended

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Fixes & Enhancements

Fixes
- Not Applicable
Enhancements
- Maintain release
Read More

Version

A19, A19

Release date

15 Oct 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 View Important Information
File Format: CPG BIOS Executable for Windows/DOS
File Name: 7420_A19.exe
File Size: 5.52 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. 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:
b2a78271c738356bec14afcda17df37d
SHA1:
bcc1a5f1b778b4c08cb0b1297344dabf7ad298a6
SHA-256:
d4bcfdb0a535bc1ebec4eaf98926c54cd9f932f7893737d5084c70ef296c7d0a

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

Additional details

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Follow the instructions after running the Setup.exe.
See the Installation Instructions category for additional details
Dell Inspiron 7420
Dell Update Package Instructions
Download
1. Click Download Now to download the file.
2. When the File Download window appears, click Save to save the file to your hard drive.
Installation
1. Browse to the location where you downloaded the file and double-click the new file.
2. Read over the release information presented in the dialog window.
3. Download and install any prerequisites identified in the dialog window before
proceeding.
4. Click the Install button.
5. Follow the remaining prompts to perform the update.

Need help with BIOS issues?

Find a solution in Dell's BIOS troubleshooting guide

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