How to repair corrupted USB flash drive on Mac?
- Check the USB port or Cable. Don’t blame the USB device just because it failed to show up on your Mac. ...
- Update or Reinstall driver. USB devices can only be recognized by the computer if it has the necessary drivers for that function.
- Check the file system format. ...
- Fix the unreadable USB flash drive with First Aid. ...
- Reformat the unreadable USB drive. ...
Full Answer
How to fix a corrupted USB flash drive on Mac?
The following steps show you how to fix a corrupted USB flash drive on Mac with Disk Utility. Open Disk Utility and choose View > Show All Devices. Select the USB drive from the sidebar and click the First Aid button.
How to recover deleted files from USB flash drive on Mac?
Connect the USB device to your Mac computer and launch Disk Drill. Select the USB flash drive from the app’s disk list. Click the Search for lost data button to start scanning for deleted files. Preview the recoverable files and select those you want to recover.
How do I repair a failing disk on a Mac?
If Disk Utility tells you the disk is about to fail, back up your data and replace the disk—you can’t repair it. In the Disk Utility app on your Mac, choose View > Show All Devices. If Disk Utility isn’t open, click the Launchpad icon in the Dock, type Disk Utility in the Search field, then click the Disk Utility icon .
How do I open a USB flash drive on a Mac?
Mac Connect the USB flash drive to your computer. Plug it into one of your Mac's USB ports. Click Go. It's a menu item in the top-left side of the menu bar. Click Utilities. This option is in the Go drop-down menu. Double-click Disk Utility. You'll likely find this option in the middle of the Utilities page. Click your flash drive's name.
How do you fix a corrupted flash drive on a Mac?
Solution 1: Fix a Corrupted USB on a Mac With Disk UtilityOpen Disk Utility and choose View > Show All Devices.Select the USB drive from the sidebar and click the First Aid button.Click Run in the First Aid dialog and follow the onscreen instructions.Click Done when the First Aid process finishes.
How do I fix my flash drive that won't read Mac?
How to fix a drive that won't show up on a Mac1: Edit your preferences. ... 2: Check the cable. ... 3: Try another Mac and then try a PC. ... 4: Use Disk Utility to access the drive. ... 5: Change the drive format. ... 6: Try a data recovery app. ... 7: Always disconnect your drive properly.
How do I restore a USB drive on a Mac?
In the Disk Utility app on your Mac, choose View > Show All Devices. If Disk Utility isn't open, click the Launchpad icon in the Dock, type Disk Utility in the Search field, then click the Disk Utility icon . In the sidebar, select the volume you want to restore, then click the Restore button .
How do I fix a corrupted flash drive?
how to fix a corrupted flash drive without formattingStop using the USB drive.Do not add new items to USB stick.Do not reformat the USB flash drive.Open CMD. ... Check if your drive has bad sectors. ... chkdsk H: /f (H is the drive letter of USB drive. ... Type Y if the drive is in use and hit Enter key to proceed.More items...•
How do I restore an unreadable flash drive?
If the flash card is not found in the listed volumes, try to insert and remove the flash drive one more time.Open unreadable flash drive through Disk Management.Install Partition Recovery.Partition Recovery - select the flash drive.Partition Recovery Wizard - scanning for lost data.More items...
Can a flash drive be repaired?
Broken usb flash drives can be fixed and recovered if the memory chips have not been cracked. Cracked memory chips are not recoverable, however damage to the USB plug, or the contact pads for the components, to the printed circuit board (PCB) can often be repaired successfully.
What causes a flash drive to become corrupted?
A USB drive can get corrupted due to varied reasons, from sudden power failure, improper operation, unplugged directly without ejecting to USB failures like file catalog corruption, etc. Usually, you will be told to re-format that USB drive in order to make it usable again.
Why is my USB flash drive not showing up?
Reason Why a USB Flash Drive Is Not Showing Up The drive isn't seated properly in the port. The drive isn't on (this is rare, but some some models of USB drives have a physical power switch). The USB port on computer is bad. The USB drive itself is broken.
How do I find my USB storage on my Mac?
Plug the flash drive into an open USB port on your Mac. Click anywhere on the desktop to open a Finder window. Click the listing for the flash drive in the left pane under Devices. Press the space bar to open a Quick Look window that shows the drive details, including the amount of free space.
How do I force a USB drive to format on a Mac?
Connect the USB drive to Mac and launch Disk Utility from Application. On the left side panel, you will see the USB drive name. Click on the USB name and switch to the Erase Tab. There, you will see the Format option where you have to select the MS-DOS (FAT) format and Master Boot Record scheme.
How to fix a corrupted flash drive without losing data on a Mac?
The best way to fix a corrupted flash drive without losing data is to recover its information using Disk Drill data recovery software and then refo...
How do I fix my USB device not recognized on Mac?
There are several methods to try to get your Mac to recognize a USB device. Try a different port. Connect the device to a different computer. Updat...
How do I fix a corrupted flash drive without formatting on a Mac?
You can try to repair a corrupted USB storage device without formatting it by using the First Aid function in the macOS Disk Utility application.
How do I reset my USB ports on my Mac?
You can reset your USB ports by resetting the System Management Controller. Here are the methods for resetting the SMC on a Mac or a MacBook. MacBo...
How can I fix an unreadable USB flash drive on Mac?
You can try a different port on your machine or a different computer. If that fails, you may need to update device drivers or resort to reformattin...
How to repair a USB flash drive on Mac?
Step 1: Get your disk/ usb flash connected to MAC. Step 2: Start terminal in mac. Step 3: Start disk utility. Step 4: Type ' diskutil list ' . Step 5: Type ' diskutil repairDisk /dev/disk2 ' when disk2 is the one that you need to repair. Step 6: Type 'Y' to confirm the repairing disk on mac with terminal .
Why is USB repair tool needed for Mac?
Macbook and MacPro are welcomed by many users due to its fancy design and there are awckward moment that some users may only have Mac with no Windows computer, so usb drive repair tool for mac is required when their flash drives become corrupted.
How to repair a USB drive that is not readable?
Here is how to repair USB flash drive when it's not readable, not recognized, not working, or even not showing up on your Mac. 1. Launch Disk Utility from Utilities. 2. Select the unreadable USB drive from the sidebar. 3.
Why won't my Mac recognize my USB drive?
Faulty USB port or cable. If the USB port or cable of the computer is not working properly , your Mac computer won't recognize or read the flash drive. File system incompatibility. The issues between the USB drive file system and macOS, for example, Windows NTFS file system is not completely compatible with macOS.
How to check if a USB flash drive is readable?
When your USB flash drive is not readable by your Mac, especially after a recent macOS Big Sur update or you haven't updated the macOS for years, you should check if any updates are available please do the following: 1. Click on the Apple in the upper left corner of the screen. 2. Select "Software Update...". 3.
What is a USB flash drive?
As we all know, USB flash drives are widely used for storing and transferring data from an iMac, MacBook or Mac Mini, though newer MacBook Pro and Air uses no USB 3.0 port.
Why won't my USB drive open?
Here are some of the common reasons behind this issue: 1 USB flash drive is virus infected 2 A virus or a Trojan may delete critical system elements, thus disabling the OS and making the drive unrecognized. 3 USB flash drive file system corruption 4 The USB flash drive was removed improperly from the computer for reasons like sudden power surge, abrupt removal, and unintentional touch, which leads to file system corruption. 5 Faulty USB port or cable 6 If the USB port or cable of the computer is not working properly, your Mac computer won't recognize or read the flash drive. 7 File system incompatibility 8 The issues between the USB drive file system and macOS, for example, Windows NTFS file system is not completely compatible with macOS. 9 Sometimes, you can't even read files or folders on NTFS USB drives through an Apple M1 Mac. 10 Out-of-date drivers 11 If drivers are out of date, the Mac operating system and your applications on the computer will fail to interact with all hardware devices. So the USB flash drive becomes unreadable. 12 A dead/bricked USB drive after physical damage 13 If your USB drive is seriously broken by hitting, dropping, shaking, etc., there is no USB repair tool or USB flash recovery software for Mac can help you.
How to check if my MacBook has a USB 3.0 port?
Solution 1: Check the USB port or cable. Check that USB port on your Mac. Plug into a different USB port or plug another device in and see if that works OK. If you use a USB hub bacause your MacBook has no USB 3.0 port, also make sure the hub is not faulty.
Can you format an unreadable USB drive?
Sometimes, you cannot format the unreadable USB drive when it's bricked. In this case, this USB flash drive is probably damaged physically, and you have to ask a local repair technician for help.
What is resetting PRAM on Mac?
There is a universal solution for the most problems with any Mac. It’s called resetting PRAM (Parameter RAM). The PRAM contains some initialization parameters related to hardware cached in the special memory. Sometimes, this memory gets corrupted and may cause all kinds of problems with sound, video, and USB devices.
What is the best format for flash drive?
If you are absolutely sure that the flash drive will only be used with Mac computers, and there will never be a need to copy something to and from PC, then the best format is Mac OS Extended Journaled. If you need encryption, then use the encrypted version of the format.
Why is my USB drive not accessible?
There are two special cases when a USB drive may not be accessible, but not because it was corrupted. It is possible that the drive was not formatted in a disk format compatible with macOS. The two cases are: A new drive. The drive that has been used in Windows or another operating system.
Is a flash drive formatted?
Most flash drives that you can purchase are preformatted in the Windows format (because there are more PC users than Mac users). In some cases, the drives were not formatted at all.
How to repair a disk on Mac?
To check and repair a disk, you need to run First Aid on each volume and container on the storage device in turn, then run it on the storage device itself. If Disk Utility tells you the disk is about to fail, back up your data and replace the disk—you can’t repair it. Open Disk Utility for me. In the Disk Utility app on your Mac, choose View > Show ...
What to do if Disk Utility can't repair your disk?
If Disk Utility can’t repair your disk, or you receive a report that the First Aid process failed, try to repair the disk or partition again. If that doesn’t work, back up as much of your data as possible, reformat the disk, reinstall macOS, then restore your backed-up data.
Can disk utility fix a disk?
Disk Utility can’t detect or repair all problems that a disk may have. To check and repair a disk, you need to run First Aid on each volume and container on ...
How to check if flash drive is working?
Way 1: Scan Flash Drive to Find the Issue. Plug the flash drive into your USB port. Go to My Computer and right-click on the flash drive. Open the Properties. Open the Tools tab and click Check now "¦. It may take some time to complete the scan. Once finished, it will tell you what the flash drive's problem is.
Why won't my computer recognize my flash drive?
USB Formatting Issue : This is the most probable reason your computer could not detect your flash drive. The inability to format flash drive properly before the first use could cause problems later on. Driver Issue: The drivers may not be available, corrupted, or outdated which would make the flash drive not Recognized.
Why is my flash drive not recognized?
Driver Issue: The drivers may not be available, corrupted, or outdated which would make the flash drive not Recognized. Hard Drive Related Issues: A glitch in your machine's hard drive will not allow anything on it to work in a good and perfect way.
How to eject a flash drive on Mac?
To eject it, click the eject icon next to the drive in the Finder, or click and drag it to the Eject icon in the Dock when on your desktop .
How to fix a flash drive that won't open?
1. Plug your flash drive into your computer. The flash drive should fit into one of the rectangular ports on your PC's housing. If you're encountering errors on your flash drive or it won't display its contents, you may need to update its drivers or software using your computer's repair feature.
How to get files off a flash drive?
Windows - Open Start, click the File Explorer icon, and click your flash drive's icon. Mac - Open Finder and click your flash drive's icon. If the flash drive doesn't connect to your computer, you can try taking it to a tech department to see if they can still pull the files off of it.
Why won't my flash drive work?
Finally, if the flash drive won't work because of physical damage, you should take it into a tech department or data recovery professional; if that's not possible, you may be able to fix it yourself by soldering the broken USB drive's circuitry to a working USB cable.
Where should a flash drive fit on a Mac?
The flash drive should fit into one of the rectangular ports on your Mac's housing. If you're encountering errors on your flash drive or it won't display its contents, you may need to update its drivers or software using your computer's repair feature.
Can a flash drive be 100% free?
A flash drive can never be 100% free, although seeing it as 2.5 from 8 is a bit odd. It's possible there is a driver error, depending on the device. Otherwise try plugging it in again, into another port or computer.
How to repair an external drive on Mac?
If you're repairing an external drive, make sure that it's connected directly to your Mac using a cable that you know is good . Then turn the drive off and back on. If your disk still doesn't appear in Disk Utility, your Mac might need service. If you need help, please contact Apple Support. Published Date: November 17, 2020.
How to repair a Mac that won't start up?
However, if your Mac doesn't start up all the way, or you want to repair the disk your Mac starts up from, open Disk Utility from macOS Recovery: Determine whether you're using a Mac with Apple silicon, then follow the appropriate steps: Apple silicon : Turn on your Mac and continue to press and hold the power button until you see ...
How to repair disk if there is no run button?
If there is no Run button, click the Repair Disk button instead. If the button is dimmed and you can't click it, skip this step for the disk, container, or volume you selected. If you're asked for a password to unlock the disk, enter your administrator password. After Disk Utility is done checking the volume, select the next item above it in ...
What to do if disk utility found errors that it can't repair?
If Disk Utility found errors that it can't repair. If Disk Utility found errors that it could not repair, use Disk Utility to erase (format) your disk.
How to open disk utility on Mac?
In general, you can just open Disk Utility from the Utilities folder of your Applications folder. However, if your Mac doesn't start up all the way, or you want to repair the disk your Mac starts up from, open Disk Utility from macOS Recovery: 1 Determine whether you're using a Mac with Apple silicon, then follow the appropriate steps:#N#Apple silicon : Turn on your Mac and continue to press and hold the power button until you see the startup options window. Click the gear icon labeled Options, then click Continue.#N#Intel processor: Turn on your Mac, then immediately press and hold these two keys until you see an Apple logo or other image: Command (⌘) and R. 2 You may be asked to select a user you know the password for. Select the user, then click Next and enter their administrator password. 3 From the utilities window in macOS Recovery, select Disk Utility and click Continue.
How to enter administrator password on Mac?
You may be asked to select a user you know the password for. Select the user, then click Next and enter their administrator password.
