Keyboard becomes unresponsive at preboot after a Dell BIOS upgrade

Technical Articles ID: KB94673
Last Modified: 9/8/2021

Environment

McAfee Drive Encryption (DE) 7.2.10 (build 7.2.10.64)

Microsoft Windows 10

Dell Latitude Rugged laptops 5414, 5420, 5424, 7414, 7424

Problem

Built-in keyboards on Dell Latitude Rugged laptops become unresponsive after you upgrade the BIOS and firmware.

This issue occurs on the following Dell Latitude Rugged models:

5414
5420
5424
7414
7424

Solution

To resolve this issue, Dell released a BIOS and Firmware update version 1.14.1 in August 2021.

Download and update your Dell systems with the latest BIOS and Firmware from the Dell website.

Workaround

If you’re unable to update the Dell BIOS and Firmware to version 1.14.1, revert to the previous working BIOS and firmware version.

Affected Products

Drive Encryption 7.2
Known Issue/Product Defect
Upgrade/Migrate

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English United States
Spanish Spain
French
Italian
Portuguese Brasileiro

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Knowledge Center

Keyboard becomes unresponsive at preboot after a Dell BIOS upgrade

Environment

Problem

Solution

Workaround

Affected Products

Languages:

Glossary of Technical Terms

Title

Title

Knowledge Center

Keyboard becomes unresponsive at preboot after a Dell BIOS upgrade

Environment

Problem

Solution

Workaround

Affected Products

Languages:

Glossary of Technical Terms

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