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USB Flash Drive / Memory card not detected on Mac USB port

When I plug the USB flash drive or memory card into my MAC it does not mount to the desktop

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

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 select USB

Summary of content (12 pages)

PAGE 1
USB Flash Drive / Memory card not detected on Mac USB port When I plug the USB flash drive or memory card into my MAC it does not mount to the desktop 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.
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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.
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Transferring a 4GB or larger file to a USB flash drive or memory card Why can't I transfer a 4GB or larger file to my USB flash drive or memory card? This is due to FAT32 limitation. Files larger than 4GB can NOT be stored on a FAT32 volume. Formatting the flash drive as exFAT or NTFS will resolve this issue. WARNING: Backup your data. Formatting will delete all the data in your device. SOLUTION 1 - Format in exFAT exFAT file system that allows a single file larger than 4GB to be stored on the device.
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5. Right-click on the flash drive, then select Properties. 6. Click the Policy tab. 7. Select Optimize for performance, then click OK. STEP 2 - Format the flash drive 1. Double-click My Computer. 2. Right-click on the flash drive, then select Format. 3. In the File system list, click NTFS. 4. Click Start. 5. Click OK to start formatting. Format by using Disk Management How do I format my drive or device using Disk Management? NOTE: For legacy U3 smart Cruzers - Formatting after uninstall U3.
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Windows XP
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STEP 3 - Format the device / MP3 player 1. Right-click on the drive / device you want to format then select Format.
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2. Occasionally, a warning may come out concerning active partition, click Yes.
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3. You can leave the formatting options such as the Volume label and File system to default. 4. Click OK to format. NOTE: If the above steps do NOT resolve the problem or if the lock switch is missing or broken, please back up your data and request a replacement using our online web form.
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For customers in US, Canada and Europe, please refer to LC Technology Data Recovery for service description and current pricing. For customers in Asia and Japan, please refer to Kroll Ontrack or DriveSavers for service description and current pricing. SanDisk SecureAccess 3.0 support information and download page What is SecureAccess and where do I download the software? SanDisk SecureAccess v3.0 is a fast, simple way to store and protect critical and sensitive files on SanDisk USB flash drives.
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For software with a release date prior to July 2, 2016, this EULA shall constitute our agreement rather than the click-through EULA in the program you are downloading (if applicable), such that the click-through EULA shall be of no force or effect. END USER LICENSE AGREEMENT DO NOT DOWNLOAD, INSTALL OR USE THE SOFTWARE UNTIL YOU HAVE CAREFULLY READ THE TERMS OF THIS END USER LICENSE AGREEMENT (“AGREEMENT”). BY DOWNLOADING, INSTALLING OR THE SOFTWARE, YOU AGREE TO ALL OF THE TERMS OF THIS AGREEMENT.
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are transferring all rights in the Software and you must supply this Agreement to the purchaser or recipient of the product, at which time all of your rights under this Agreement and in the Software will immediately cease. Except as stated above, you may not assign or transfer this Agreement in part or in whole, and any attempt to do so shall be void. 8. Termination. We may terminate this Agreement and the license immediately and without notice if you breach it.
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System Requirements - Microsoft Windows® 10, Microsoft Windows® 8, Microsoft Windows® 7, Windows Vista® - Mac OS® X 10.7+ (Intel Based Mac only) Instructions for Upgrading from Previous Versions Migrate/Upgrade from SecureAccess v2.0 to v3.0 for Windows Migrate/Upgrade from SecureAccess v2.0 to v3.0 for Mac Migrate/Upgrade from SecureAccess v1.0 to v3.0 for Windows Migrate/Upgrade from SecureAccess v1.0 to v3.