Check if SD Card Is Lockedįull-size SD cards have a lock switch on the left side that, when activated, makes it impossible to modify or delete any stored data. You can restart the USB daemon by entering the following command in Terminal: sudo launchctl stop sudo launchctl start Īlternatively, you can just restart your Mac, which will have the same end result.
VIVITAR USB CARD READER MAC
If this daemon stops working correctly, it’s very likely that your Mac won’t be able to recognize your SD card.
VIVITAR USB CARD READER SERIAL
Memory card readers transfer data via USB, or Universal Serial Bus, which is a data interface that enables communication between devices (readers, USB flash drives, external drives) and a host controller (your computer).Ĭontrolling this interface on macOS is the so-called USB daemon, a background process responsible for device mounting, configuration management, and all other aspects of transferring data via USB. Check for USB and Other Connection Issues If you don’t have one, then you can ask a friend to let you use their laptop for a while and use its built-in memory card reader instead. Check if SD Card Reader Is WorkingĪs we’ve explained earlier in this article, SD card readers are not 100% reliable, so you should check if your reader is working as it should before you move on to other fixes described in this article.ĭo you have another memory card reader that accepts SD cards? If so, then it’s easy because you can just connect it to your Mac and insert your SD card. When you restart your Mac, you force all these parts to relaunch with a clean slate, and that’s often all it takes to fix all kinds of problems. Why does a restart fix so many problems? Because modern operating systems are incredibly complex, consisting of hundreds and thousands of individual processes, services, and applications, all of which must work correctly for the operating system to behave as expected. Have you tried turning it off and on again? Seriously, have you? Because a simple restart is often all it takes to fix a Mac that doesn’t recognize an SD card. Make sure all items under “Show these items on the desktop” are checked.To also display the SD card on your desktop:
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How to Fix Mac Not Reading or Recognizing SD My Card? Sometimes, all it takes for macOS to stop working as it should is one malware infection.
If you use one of them, your Mac won’t read the SD card at all. However, there are dozens and dozens of other file systems that macOS doesn’t support.