Check the Physical Write Protection Tab. It’s like the easiest step. If your memory card and adapter. The memory card reader may not be working properly and causing it to not read the memory card. If you have access to another memory card, insert it into the computer reader to see if it can be read. If it can be read, your memory card is bad and likely needs to be replaced. If the other memory card is also not readable by the built-in memory.
First we need to check your Finder preferences and ensure external disks are set to mount to your desktop.
With the Flash Drive connected to the USB port of your computer:
1. Click Finder in the upper left corner of the screen and select Preferences
2. Ensure the check box next to External disks is checked
2. Ensure the check box next to External disks is checked
Macbook Not Recognizing Sd Card
If the Finder preferences are set to mount external drives to the desktop we will need to determine if the USB flash drive is detected by the computer
1. Double click the MAC HDD
2. Double click Applications
3. Double Click Utilities
4. Select System Information
5. On the left side selectUSB
2. Double click Applications
3. Double Click Utilities
4. Select System Information
5. On the left side selectUSB
Open Sd Card In Windows 10
If you see Flash Drive listed under the USB hub the USB flash drive is detected properly. You can verify is the drive is mounted by Selecting 'Go > Go to folder' from the file menu and typing /Volumes/ (Note: This is case sensitive). This will open the mount point for all drives connected to the Mac computer. You should see the drive mounted here.
If the USB flash drive is not listed under USB hub please verify other USB devices work properly and if possible test the USB flash drive using a different computer.If the USB flash drive is not detected on other computers or if other USB devices are working properly on this Mac then most likely the USB drive is not functional.
Mac Won't Recognize Sd Card
If the USB drive appears non-functional per the above troubleshooting, please contact SanDisk support for further assistance with warranty. Movie explorer 2 0 2.