OptiPlex All-in-One Computers Running Dell ThinOS 9 do not Detect SD Cards When Inserted

Summary: This article provides information about OptiPlex All-in-One (AIO) computers with a Genesys SD card reader not detecting SD cards when inserted.

This article applies to This article does not apply to This article is not tied to any specific product. Not all product versions are identified in this article.
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Symptoms

Affected Platforms:

  • OptiPlex All-in-One 7410
  • OptiPlex All-in-One 7420

Affected Operating Systems:

  • Dell ThinOS 9 Build 2405 and Later

There are two SD card reader models used in the OptiPlex AIO computers, Realtek and Genesys. Realtek is used primarily and Genesys is an alternate.

Most OptiPlex AIO computers use the Realtek SD card reader and function as designed. There is a limited number of OptiPlex AIO computers that use the Genesys SD card reader, and the SD card is not detected when inserted.

Cause

The ThinOS kernel was updated to a newer version in ThinOS 2405 and later. The Genesys SD card reader has a compatibility issue with the new ThinOS kernel.

Resolution

A fix will be included in the ThinOS 2505 which is scheduled to be released in May 2025.

Affected Products

OptiPlex All-In-One 7410, OptiPlex All-in-One 7420, Dell ThinOS
Article Properties
Article Number: 000303018
Article Type: Solution
Last Modified: 22 May 2026
Version:  3
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