#external device

Solution 1. Remove and then plug the power supply to fix the USB device malfunctioned error.

Unplug the USB device from the Computer >> Turn off the computer >> Remove the power supply of the computer >> Plug the power supply back to the computer after 20-30 seconds >> Restart the computer >> Plug on the USB device again.

Solution 2. Unplug the USB device and reconnect with a computer

Unplug the USB device from the computer >> clean the USB port of the device clamp the position of the USB port and flash chip inside the USB housing >> Reconnect the USB device with a computer

Solution 3. Configure the USB Root Hub

Press WIN X and then choose Device Manager >> Find the Universal Serial Bus controllers >> Right-click on USB Root Hub >> Properties >> Power Management >> Check to Allow this computer to turn off this device to save power >> Click Ok >> Plug the USB device again with the computer.

Solution 4. Disable and then enable the Generic USB hub

Press WIN X and then choose Device Manager >> Find the Universal Serial Bus controllers >> Right-click on Generic USB hub >> Disable >> After that then click Enable >> Click Ok >> Plug the USB device again with the computer.

Solution 5. Update the USB device driver to fix the last USB device malfunctioned error

Press WIN X and then choose Device Manager >> Find the Universal Serial Bus controllers >> Right-click on the USB device’s driver >> Update Driver Software >> After update >> Click Ok >> Plug the USB device again with the computer.

Solution 6. Uninstall the universal serial Bus controller then reinstall

Press WIN X and then choose Device Manager >> Find the Universal Serial Bus controllers >> Right-click on the USB device’s driver >> Uninstall >> Reboot the computer>> Plug the USB device again with the computer >> The system will reinstall the driver for you and then fix the last USB device malfunctioned error

Solution 7. Disable USB selective suspend

Press WIN X and then choose Power Option >> Change Plan setting >> Change advanced power setting >> USB settings >> USB selective suspend setting >> Disable On battery and Plugged in >> Save the settings >> Plug the USB device again with the computer

Solution 1. Remove and then plug the power supply to fix the USB device malfunctioned error.

Unplug the USB device from the Computer >> Turn off the computer >> Remove the power supply of the computer >> Plug the power supply back to the computer after 20-30 seconds >> Restart the computer >> Plug on the USB device again

Solution 2. Unplug the USB device and reconnect with a computer

Unplug the USB device from the computer >> clean the USB port of the device clamp the position of the USB port and flash chip inside the USB housing >> Reconnect the USB device with a computer

Solution 3. Configure the USB Root Hub

Press WIN X and then choose Device Manager >> Find the Universal Serial Bus controllers >> Right-click on USB Root Hub >> Properties >> Power Management >> Check to Allow this computer to turn off this device to save power >> Click Ok >> Plug the USB device again with the computer.

Solution 4. Disable and then enable the Generic USB hub

Press WIN X and then choose Device Manager >> Find the Universal Serial Bus controllers >> Right-click on Generic USB hub >> Disable >> After that then click Enable >> Click Ok >> Plug the USB device again with the computer.

Solution 5. Update the USB device driver to fix the last USB device malfunctioned error

Press WIN X and then choose Device Manager >> Find the Universal Serial Bus controllers >> Right-click on the USB device’s driver >> Update Driver Software >> After update >> Click Ok >> Plug the USB device again with the computer.

Solution 6. Uninstall the universal serial Bus controller then reinstall

Press WIN X and then choose Device Manager >> Find the Universal Serial Bus controllers >> Right-click on the USB device’s driver >> Uninstall >> Reboot the computer>> Plug the USB device again with the computer >> The system will reinstall the driver for you and then fix the last USB device malfunctioned error

Solution 7. Disable USB selective suspend

Press WIN X and then choose Power Option >> Change Plan setting >> Change advanced power setting >> USB settings >> USB selective suspend setting >> Disable On battery and Plugged in >> Save the settings >> Plug the USB device again with the computer

Whenever the SD card is connected to the Mac system via card reader or SD slot, it will show up in the Finder, Disk Utility, or desktop. When Mac users do not see the SD card shows up in any of the given locations, it means it is not set up correctly. Besides, there can be various reasons for the SD card not showing up on Mac devices such as Viruses, Malware, corrupted SD card, and damaged card reading slot.

Quick Check on SD Card Before proceeding, there are a few small checks which also can be performed by Mac users which are fast and effective to the SD card not showing up on Mac issue:

1. Wipe the SD card with a clean and dry cloth to remove any dirt, dust, or grease.

2. Try another SD card reader or slot to check if its working or not.

Suppose that you are using a microSD, make sure to unlock it safely. Make sure the contact points of the SD card are correctly position and facing down before inserting it into the SD card slot on the Mac device.

SD slot can be thin and wide, so Mac users must be careful when connecting the SD card. Most importantly, there can be a high risk of data loss from SD card when you are fixing the issue. Therefore, to prevent permanent loss of data, we suggest you go through together the steps below to recover all essential data from the SD card by using the reliable and free Mac data recovery tool.

Solution 1. Remove and then plug the power supply to fix the USB device malfunctioned error.

Unplug the USB device from the Computer >> Turn off the computer >> Remove the power supply of the computer >> Plug the power supply back to the computer after 20-30 seconds >> Restart the computer >> Plug on the USB device again

Solution 2. Unplug the USB device and reconnect with a computer

Unplug the USB device from the computer >> clean the USB port of the device clamp the position of the USB port and flash chip inside the USB housing >> Reconnect the USB device with a computer

Solution 3. Configure the USB Root Hub

Press WIN X and then choose Device Manager >> Find the Universal Serial Bus controllers >> Right-click on USB Root Hub >> Properties >> Power Management >> Check to Allow this computer to turn off this device to save power >> Click Ok >> Plug the USB device again with the computer.

Solution 4. Disable and then enable the Generic USB hub

Press WIN X and then choose Device Manager >> Find the Universal Serial Bus controllers >> Right-click on Generic USB hub >> Disable >> After that then click Enable >> Click Ok >> Plug the USB device again with the computer.

Solution 5. Update the USB device driver to fix the last USB device malfunctioned error

Press WIN X and then choose Device Manager >> Find the Universal Serial Bus controllers >> Right-click on the USB device’s driver >> Update Driver Software >> After update >> Click Ok >> Plug the USB device again with the computer.

Solution 6. Uninstall the universal serial Bus controller then reinstall

Press WIN X and then choose Device Manager >> Find the Universal Serial Bus controllers >> Right-click on the USB device’s driver >> Uninstall >> Reboot the computer>> Plug the USB device again with the computer >> The system will reinstall the driver for you and then fix the last USB device malfunctioned error

Solution 7. Disable USB selective suspend

Press WIN X and then choose Power Option >> Change Plan setting >> Change advanced power setting >> USB settings >> USB selective suspend setting >> Disable On battery and Plugged in >> Save the settings >> Plug the USB device again with the computer

Whenever the SD card is connected to the Mac system via card reader or SD slot, it will show up in the Finder, Disk Utility, or desktop. When Mac users do not see the SD card shows up in any of the given locations, it means it is not set up correctly. Besides, there can be various reasons for the SD card not showing up on Mac devices such as Viruses, Malware, corrupted SD card, and damaged card reading slot.

Quick Check on SD Card Before proceeding, there are a few small checks which also can be performed by Mac users which are fast and effective to the SD card not showing up on Mac issue:

Wipe the SD card with a clean and dry cloth to remove any dirt, dust, or grease. Try another SD card reader or slot to check if its working or not. Suppose that you are using a microSD, make sure to unlock it safely. Make sure the contact points of the SD card are correctly position and facing down before inserting it into the SD card slot on the Mac device. SD slot can be thin and wide, so Mac users must be careful when connecting the SD card.

Most importantly, there can be a high risk of data loss from SD card when you are fixing the issue. Therefore, to prevent permanent loss of data, we suggest you go through together the steps below to recover all essential data from the SD card by using the reliable and free Mac data recovery tool.

Solution 1. Remove and then plug the power supply to fix the USB device malfunctioned error.

Unplug the USB device from the Computer >> Turn off the computer >> Remove the power supply of the computer >> Plug the power supply back to the computer after 20-30 seconds >> Restart the computer >> Plug on the USB device again

Solution 2. Unplug the USB device and reconnect with a computer

Unplug the USB device from the computer >> clean the USB port of the device clamp the position of the USB port and flash chip inside the USB housing >> Reconnect the USB device with a computer

Solution 3. Configure the USB Root Hub

Press WIN X and then choose Device Manager >> Find the Universal Serial Bus controllers >> Right-click on USB Root Hub >> Properties >> Power Management >> Check to Allow this computer to turn off this device to save power >> Click Ok >> Plug the USB device again with the computer.

Solution 4. Disable and then enable the Generic USB hub

Press WIN X and then choose Device Manager >> Find the Universal Serial Bus controllers >> Right-click on Generic USB hub >> Disable >> After that then click Enable >> Click Ok >> Plug the USB device again with the computer.

Solution 5. Update the USB device driver to fix the last USB device malfunctioned error

Press WIN X and then choose Device Manager >> Find the Universal Serial Bus controllers >> Right-click on the USB device’s driver >> Update Driver Software >> After update >> Click Ok >> Plug the USB device again with the computer.

Solution 6. Uninstall the universal serial Bus controller then reinstall

Press WIN X and then choose Device Manager >> Find the Universal Serial Bus controllers >> Right-click on the USB device’s driver >> Uninstall >> Reboot the computer>> Plug the USB device again with the computer >> The system will reinstall the driver for you and then fix the last USB device malfunctioned error

Solution 7. Disable USB selective suspend

Press WIN X and then choose Power Option >> Change Plan setting >> Change advanced power setting >> USB settings >> USB selective suspend setting >> Disable On battery and Plugged in >> Save the settings >> Plug the USB device again with the computer

It can be daunting when you are restricted from accessing the data stored in your SD card that you wish to work up on due to the SD card not being detected by your Mac computer system. When this happens, you won’t hear any notification sound, and also no pop-up window will show up.

There can be several reasons associated with this issue, which may cause damage to your Mac system, SD card, and the card reader as well. Nevertheless, there is no need to worry when you encounter ‘Mac won’t read SD card’ error on Mac because there are various easy ways to solve this error and recover all your vital data from the SD card using a powerful Mac data recovery tool!

Why ‘Mac won’t read SD card’ Error Occurs?

Look here for some of the prime reasons that cause ‘Mac won’t read SD card’ error on Mac device:

Virus attack and Malware.

Physically damaged SD card.

Corrupted file system.

Sudden power outage or failure.

Best Solutions to Fix ‘Mac won’t read SD card’ Error on Mac

There are a lot of useful solutions to fix ‘Mac won’t read SD card’ error, you can try all the different solutions and suppose that you want to recover data from the SD card, you can use Bitwar Data Recovery for Mac to restore the data for free!

Please follow the solutions given below to fix and repair the error on Mac device:

Solution 1: Check SD Card Connection

Improper connection of SD may cause the SD card unreadable on a Mac device. Please make sure the SD card is connected properly by reconnecting it or connect with a different plug on your Mac device.

Solution 2: Check the SD Card Reader on Mac

Sometime the SD card reader may not be working; in such a case, please try a different card reader. If the card is still not being recognized in the other card reader, then there is a problem with the SD card you are using while, if the card is being detected in another card reader, then the issue pertains to your SD card.

Solution 3: Changing Finder Preference

If there is no problem with your SD card reader, then there is a possibility that the external disk is not set up on your desktop. Thus SD card is not showing up on your Mac computer.

Step 1: Navigate to the Finder, then Preferences followed by the General tab.

Step 2: Check the External Disk option to display the SD card on your desktop.

Step 3: After this, move to the Sidebar tab and check the External disks option below Devices to show up the SD card in Finder.

Supposed that you may see the SD card showing up on your Mac, but if still, the data is still not accessible, you may need to proceed continually with Bitwar Data Recovery for Mac, as this is the best SD card data recovery software that helps retrieve the vital photos or videos from your SD card, now, let’s move ahead with the below solutions.

Whenever the SD card is connected to the Mac system via card reader or SD slot, it will show up in the Finder, Disk Utility, or desktop. When Mac users do not see the SD card shows up in any of the given locations, it means it is not set up correctly. Besides, there can be various reasons for the SD card not showing up on Mac devices such as Viruses, Malware, corrupted SD card, and damaged card reading slot.

Quick Check on SD Card

Before proceeding, there are a few small checks which also can be performed by Mac users which are fast and effective to the SD card not showing up on Mac issue:

Wipe the SD card with a clean and dry cloth to remove any dirt, dust, or grease.

Try another SD card reader or slot to check if its working or not.

Suppose that you are using a microSD, make sure to unlock it safely.

Make sure the contact points of the SD card are correctly position and facing down before inserting it into the SD card slot on the Mac device. SD slot can be thin and wide, so Mac users must be careful when connecting the SD card.

Most importantly, there can be a high risk of data loss from SD card when you are fixing the issue. Therefore, to prevent permanent loss of data, we suggest you go through together the steps below to recover essential data from the SD card by using the reliable and free Mac data recovery tool.