Article Number: 000130652
This article describes the procedure to use when downgrading the system BIOS on a Dell system.
Generally, while Dell does not recommend downgrading the system BIOS due to the enhancements and fixes provided in BIOS updates, Dell does provide the option to do so. Users may choose to downgrade a BIOS for various reasons, more common reasons including custom Operating System (OS) image support or enhancement requirements. Dell has made downgrading the system BIOS as simple as downloading the BIOS version desired and following the onscreen installation wizard.
Follow the instructions below:
Browse to the Drivers and downloads page.
If you are asked to "Identify your product", then either enter your Service tag, or select "Browse for a product" to select manually.
If the system shown is incorrect, click "View a different product" and again either enter your Service tag or Browse manually.
If the correct system is already selected, then in the pull-down menus, choose the BIOS Category.
If a different version of the BIOS is required from the one shown, click Other versions available, a box opens below.
Select the required BIOS version then click Download File.
Save the file to the Desktop for or a preferred location.
When ready, right-click the downloaded file and select "Run as administrator", follow the on-screen instructions.
If you require further assistance, please contact Technical Support.
21 feb. 2021