USB Flash Drive / Memory card not detected on Mac USB port · 2017-10-18 · the USB flash drive...
Transcript of USB Flash Drive / Memory card not detected on Mac USB port · 2017-10-18 · the USB flash drive...
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
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.
If the USB drive appears non-functional per the above troubleshooting, please contact SanDisk support for further
assistance with warranty.
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. This file
system is also compatible with Mac.
Windows 7 and Mac OS 10.6.6 and higher are compatible with exFAT out of the box. Older
operating systems may need a patch installed for exFAT compatibility.
NOTE: exFAT file system is NOT compatible with some host devices such as TV, game
systems, older operating systems, car stereos etc.
Formatting a drive in exFAT 1. Double-click on My Computer.
2. Right-click on the flash drive or memory card, then select Format.
3. In the File System list, click exFAT.
4. Click Start.
5. Click OK to start formatting.
Click Here for Instructions to format with Mac
SOLUTION 2 - Format in NTFS
WARNING:
- Formatting the device as NTFS will make it unwriteable on a Mac computer. Most Mac
computers can read NTFS, but not write.
- NTFS is a journaled file system, this creates more read/write activities. Therefore, it MAY
decrease life expectancy of your device.
- Once the device is formatted as NTFS, you MUST use "Safely Remove Hardware" to remove
your device.
STEP 1 - Optimize the flash drive for performance 1. Plug in the device to the PC.
2. Open The Computer Management Console
a) Windows 8
b) Windows XP, Windows Vista, Windows 7
3. On the Left side select Device Manager
4. On the right side expand Disk Drives
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. You should first uninstall U3.
MP3 players - The user must change in MSC mode before connecting to the PC.
For miniSD / microSD - cards must be used with a compatible player before it can be read on the
computer.
STEP 1 - Connect the flash drive, MP3 player (in MSC mode), memory card or card
reader to PC
FASE 2 - Open the computer management console
1. Open the computer management console
Accessing the Computer Management Console
2. Under Storage, click Disk Management on the left pane.
Windows 7 or Vista
STEP 3 - Format the device / MP3 player
1. Right-click on the drive / device you want to format then select Format.
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.
Data recovery for memory cards and flash drives
How do I recover missing files or accidentally deleted files? What if my camera showed an error
and all my pictures are missing? Also, can I recover my data if my memory card or flash drive
stopped working? Can I 'undelete' files?
How can I recover pictures from a memory card that has become unreadable?
SanDisk warranty does NOT provide reimbursement for data recovery services. This is
specifically stated in our warranty. The SanDisk warranty covers the product itself, but does
NOT cover any damages due to data loss. It is recommended to make regular backups of all your
data and pictures.
Disclaimer Notice: Use of Third-Party Software or Websites
For functional memory cards and flash drives If your memory card or flash drive is still functional, you can try using a data recovery program.
There is a high probability that your data can be recovered after you get an error while using the
card, accidentally format it or delete files.
SanDisk recommends using RescuePro and RescuePro Deluxe. You can download a demo
version of RescuePro and RescuePro Deluxe. These demo versions will show you what files can
be recovered and provide a preview of the files for some common picture file types. The demo
versions will require purchase of a license key to enable the feature to save the files. This is an
excellent way to see if the program will work before you purchase.
RescuePro/RescuePro Deluxe for PC
RescuePro/RescuePro Deluxe for Mac
After you recover your data, you can reformat your memory card or flash drive and use it again.
For Non-functional memory cards and flash drives If your memory card or flash drive is no longer functional or cannot be accessed by your
computer, then you will need to send it to a data recovery company. They will attempt to recover
data on your memory card or flash drive. SanDisk recommends LC Technologies for this. LC
Technologies specializes in SanDisk products.
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.
Access to your private vault is protected by a personal
password, and your files are automatically encrypted -
so even if you share your SanDisk® USB flash drive or
it becomes lost or stolen, access to your files are safe.
Note: SecureAccess is not required to use your flash
drive as a storage device on Mac or PC.
SecureAccess is a complimentary data encryption
and password protection application.
SecureAccess v3.0 features - Quicker start-up
- Improved password settings
- Faster Encryption with multi-thread processing
- Ability to edit your documents stored in vault
- File Streaming Access
- Encrypted Backup and Restore data stored in vault
- Optional File Shredder (deletion) from source after
transfer to vault
- Automatic logout time-out setting
Quick Assist Demos
- How To Use SecureAccess
Quick Start Guide - Download Quick Start Guide
Download SecureAccess V3 Application for PC and Mac below:
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- Download for PC (8MB)
- Download for Mac (13MB)
Languages Supported English, French, German, Spanish, Italian, Portuguese (Brazilian), Simplified Chinese, Traditional
Chinese, Japanese and Korean
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 v3.0 for Mac