Most, but not all SD (Secure Digital) cards have a lock lever that write-protects the data on the card.
Find the small notch on the left or right edge of the SD card.
Pull the switch up OR in the direction the label states to unlock the SD card.
Swap your existing card with another that is known to work. This is to rule out the memory card that is not being detected.
To run a Memory Card Reader Diagnostic click here then select the Memory Card Reader Diagnostic.
An out of date or corrupt memory card reader driver, also known as a Chipset Driver, can cause it too not detect the memory cards.
Visit the Dell Drivers and Downloads website and input your Service Tag to get updates specific to your computer.
If you need assistance in Downloading and Installing Drivers or BIOS. Click here for Installation Instructions
If issues persist after completing the steps please contact Dell Technical Support for further assistance.
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Article ID: SLN129159Last Date Modified: 11/05/2019 03:17 AM