However, users of SanDisk, Lexar or Transcend often run into certain card reading problems, including such: It is used in cameras, mobile phones (typically Micro SD cards), devices like Nintendo Switch and others. SD card (Secure Digital) is a proprietary non-volatile memory card type, which is one of the most popular external memory devices nowadays. We’ll cover and suggest fixes for this problem below. There are several reasons why your computer or mobile phone isn’t reading data stored on your card. In other words, the AutoPlay window suggesting to open and view files on the card won’t show up. The issue arises after plugging in your memory card into your computer or mobile phone, and discovering that your device doesn’t recognize it. SD Card Not Detected is a problem that often bothers Windows 10/8/7/Vista/XP or Android users. Change the Drive Letter for the Unrecognized SD card Use Windows Troubleshooter to fix SD Card not detected issue Run CHKDSK command to make the memory card detectable
Check if the memory card and reader are clean
Try connecting memory card to a different computer