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Dell Inspiron 7720/5420/5421 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.
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Driver Id : TWX8N
Importance : Critical
Version : 1.4.0, 1.4.0 Latest version Recommended version Latest and Recommended version
Release Date : 07 Aug 2023
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. This update addresses the Dell Security Advisories (DSA). A security advisory is a statement when a security vulnerability impacts a product, and a remedy is available for the vulnerability.

Download Files

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: Inspiron_5420_5421_7720_1.4.0.exe
File size: 19.93 MB
To ensure the integrity of your download, please verify the checksum value.
MD5: 09e8872f66ae6662c5ef6b1b9b811044
SHA1: 8b5b907fde6f14e48df4c6fe23550eda993c0010
SHA-256: 2cfaa09e11c4ef14dba4c8ae43cf268d2a2a7d5b9beada3a5eced4564580ef2e
Download .EXE
File Format: This file format consists of a BIOS Recovery image file. This file is used for the System BIOS Recovery process to recover a system from a corrupted BIOS.
File Name: BIOS_IMG.RCV
File size: 19.93 MB
To ensure the integrity of your download, please verify the checksum value.
MD5: 09e8872f66ae6662c5ef6b1b9b811044
SHA1: 8b5b907fde6f14e48df4c6fe23550eda993c0010
SHA-256: 2cfaa09e11c4ef14dba4c8ae43cf268d2a2a7d5b9beada3a5eced4564580ef2e
Download .RCV