Solved - Fixed & Recovered Files from USB FLash Drive That is Not Recognized on Mac

Updated on May 06, 2020

Know how to get your data back from a USB flash drive that is not recognized on Mac with the help of Remo Recover data recovery software. The free version of the tool is available for free download, Get it and preview the recovered files from the USB drive for free now!!!


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Data loss from USB flash drives is very common as they used on different devices to transfer, copy or write new data. Because of its portability and affordability, many users prefer USB drives to store their important data. As, we use the same USB Drive on different computers, chances of the USB drive getting corrupt is very high, and may go unrecognized when it get corrupt. When your USB drive is not recognized on your computer, do not panic. Taking right measures will save your data and energy. Let us see how to make the USB drive detectable and recover data from it.

To recover data from undetectable USB flash drive, you first have to make it recognize by Mac. A little workaround can make your flash drive detectable.

Check External Disks are enabled to Mount

Connect the USB drive to your Mac and go to Finder and select Preferences. Ensure External disks is check/tick marked.

If it is enabled to mount, then you should check if the USB flash drive is detected by your Mac. To do that;

  • Double-click on Mac HDD and the Applications.
  • Now, click Utilities and choose System Information.
  • On the left pane, select USB.

If you can see the USB drive under the ‘USB hub’, then the flash drive is recognized by Mac. To cross check the same by going to file menu and selecting Go and then Go to folder and type /Volumes/. This will show the mounting point of all the connected drives to your Mac.

Now that your flash drive is detected, you can easily recover the data from it with the help of Remo Free Data Recovery Software.

Free Tool to Recover Data from Unrecognized USB flash Drive - Remo Recover!!!

Remo Recover Mac is specially designed to retrieve files from USB flash drives, pen drives, and other external storage drives. The tool has the ability to restore USB 3.0 hard drive data, restore lost or deleted volumes, retrieves data lost due to system failure and other data loss situation.

You can also use this software when your USB flash drive is corrupted, or when it turned RAW, when files are missing and also know how to recover data after USB drive insert disk error. The tool even helps in data recovery from USB drive showing 0 bytes’ error.


Steps to recover data from USB Flash Drive that is not recognized on Mac:

1: Download and install Remo Recover application and run it to open its main screen as shown. Select "Recover Volumes/Drives" option.

USB Flash Drive Not Recognized - Main Screen

Figure 1: Main Screen

2: Select the particular volume from which flash drive data is to be recovered and click "Next".

USB Flash Drive Not Recognized Mac - Select Drive

Figure 2: Select Volume

3: Scanning process may take few minutes to complete, after which the list of recovered data from USB thumb drive shall be displayed.

Recover Data from USB Flash Drive Not Recognized - Recovered Canon Data

Figure 3: Recovered USB Drive Data

4: In order to avoid scanning of the volume in future, you can use "Save Recovery Session" option to save the current recovery process.

How to Recover a USB Flash Drive Not Recognized - Save Recovery Session

Figure 4: Save Recovery Session


Causes for data loss from thumb drive:

  • Unplugging USB drive: During the process of transferring the file from the storage device to your system, if you suddenly remove the drive while it is still processing then it may result in loss of data in the storage drive.
  • Unsupported format: Sometimes USB drive may not be supported by your local machine resulting which you may lose your important files which you wanted to access may become inaccessible.
  • Virus infection: Virus will be the leading cause for loss of files from the thumb drive. If it is inserted into a computer, it contracts the infection and causes data loss. If these drives get affected by the viruses, then most of the files stored in these drives may get deleted or corrupted that travels through an infected system.
  • File formatting: This problem may occur when you want to change the format of the particular file from FAT to NTFS file system or vice versa or sometimes from NTFS to HFS file system type. During this process, corruption of the particular file may occur which leads to inaccessibility of the files.