Summary: Is your USB drive not showing up on Mac? Mac not recognizing USB device? USB flash drive not working on Mac? In this article, we will help fix flash drive not showing up on Mac and Mac not recognizing USB drive.
Normally when you plug a USB flash drive into your Mac, you can find the connected USB device on Mac desktop or in Finder. However, sometimes, the USB flash drive won't be mounted correctly. And then the hard drive won't be showing up on Mac desktop or in Finder. How to fix it?
Now, let's dive into the solution.
How to fix USB flash drive not showing up on Mac?
I just bought a new USB Mouse for my MacBook Pro, and it suddenly won't work. It will work fine on my brother's Mac, but will not work on mine. I have tried two other mice and neither will work. Checking in System PreferencesMouse it says that it cannot detect a mouse. My Snow Leopard Mac doesn't recognize my Samsung Galaxy S2 for file transfer over USB, and it's starting to drive me nuts. I've tried the following: Connect Storage to PC. Settings Wireless and Networks USB Utilities Connect Storage to PC. If a USB device doesn't work with Mac. If a USB device isn't working properly, make sure it's connected to your computer correctly, plugged into a power outlet if it has a power cord, and any necessary software is installed. Check the power, port, and cable connection. When the Mac starts back up, the SMC will have reset. Check to see if your USB device works. Resetting the SMC for iMac, Mac Pro, and Mac Mini. Shut down the computer; Unplug the power adapter. Press the power button and hold it for at least five seconds. Release the power button. Reconnect the power adapter and start the computer. My operating system is window 8 and I am running mac OS in a Virtual box.I have successfully install the Mac OS on oracle Virtual box but when I used my Pen drive it's not detect in mac OS. I have install external software for USB devices for virtualbox extension pack 4.2.16 but my problem not solved.
There are seven solutions to fix USB flash drive not showing up on Mac or Mac not recognizing USB device:
Fix 1: Check USB cable, USB connection and USB ports.
Jump drives are directly plugged into USB ports on Mac while SD cards and NM cards need card readers before you access them through USB ports. That in-between connections, actually, could be the first cause for USB drive not showing up on Mac.
Then, how to check if the USB flash drive is recognized by Mac?
It's easy to confirm that your Mac has already recognized the USB device when it is not showing up in the Finder or the desktop. Simply click the Apple logo at the upper left of your Mac > About this Mac > System report > USB, and then all your connected USB devices will show up with detailed information as the picture below.
Run mac os x on windows 10 using vmware. If the USB flash drive not detected by Mac due to hardware problems, you won't see the connected USB device under the USB Device Tree.
In case it's the USB port, cable, or card reader that stops your USB drives working on the Mac, you'd better try these things before you proceed with other solutions.
- Try to re-plug the USB flash drive into your Mac and see if it shows up.
- Sometimes, the Mac just is zoning out and fails to recognize the USB flash drive, or you didn't plug the USB drive into USB port in a right way at the first time. So, hopefully, the USB flash drive would show up after a second try.
- Try another USB port to connect this USB flash drive.
- Most computers, including PC and Mac, have multiple USB ports. And some USB ports may be deformed, lack of power, or dusty. In this case, simply try another USB port to connect this USB flash drive to your Mac.
- Reset USB ports on Mac to detect USB drive
- Resetting USB ports on Mac is another way to solve Mac not recognizing USB flash drive problem.
- Step 1: Disable SIP.
- Step 2: Download, install and launch iBoysoft Drive Manager on your Mac and select 'Remount USB storages' to reset USB ports.
- Try to connect the USB flash drive directly to your computer, not via USB-C adapter or USB hub.
- Some models of MacBook Pro and MacBook Air has only one USB 3.0 port, which causes the requirement of an additional USB adapter for more hubs. Inevitably, such transition could be unstable for power supply and data transferring, especially when you bought some cheap and low-quality adapter. Thus, try to connect the USB flash drive directly to USB port on your Mac this time.
- Try another USB cable or a newer card reader.
- Occasionally, you have used the same USB cable or SD card reader for years, which means the cable might broken or the card reader is out of date and some new features are not supported by the old card reader. As a result, the USB flash drive or the SD card is not showing up on Mac. Under this circumstance, simply get a new one and replace it.
- • Learn how to fix SD card reader not working on your Mac?
- Check the type of your USB flash drive by color.
- Usually, the USB 1.0 features a white plastic color, while USB 2.0 is black, and the USB 3.0 is blue.USB 3.0 is usually a blue USB inserts. But all USB ports on Mac computers that support USB 3 don't have blue inserts. In this case, if you connect a USB 2.0 flash device to USB 3.0 slot on Mac, the speed will only reach that of the USB 2.0. As a result, the data transfer rate of the thumb drive would be lowered and the thumb drive won't work optimally.
Fix 2: Change Finder preferences to show up USB flash drive on Mac desktop
Occasionally, your Mac has already detected the USB flash drive but you cannot find the connected USB device on Mac desktop. Thus, you should go to Finder > Preferences > General and make sure the 'External disks' option is checked. Then you'll see the connected USB flash drive showing up on Mac desktop.
Fix 3: Change Finder preferences to show up USB flash drive in Finder
Go to Finder > Preferences, switch to Sidebar tab, and check 'External disks' option under Locations.
You will see the connected USB flash drive in Finder's sidebar.
Fix 4: Reinstall or update USB driver
When your USB device is not detected by Mac, you should check if any USB driver updates are available, please do the following steps:
Step 1: Click on the Apple in the upper left corner of the screen.
Step 2: Select 'Software Update..'
Step 3: Any updates available will be listed and able to be downloaded or you will be told your software is up to date.
Fix 5: Repair USB flash drive with First Aid
If you can see USB flash drive but it is not mounting in Mac Disk Utility, in this case, you can try macOS built-in First Aid to repair the errors on USB flash drive.
Step 1: Launch Disk Utility from Utilities in Applications folder.
Step 2: Select the corrupted USB drive from the sidebar.
Step 3: Click First Aid at the top of the window, and then click Run, wait until the reparation process finishes.
Fix 6: Reformat USB flash drive
If USB flash drive not mounting on Mac is caused by disk corruption, the only solution under this circumstance is to reformat the USB drive. However, reformatting USB flash drive will erase all the files stored on it.
In order to avoid unwanted data loss, it's necessary to recover data from the unrecognized USB flash drive in advance.
iBoysoft Data Recovery for Mac is trustworthy and professional USB data recovery software that can recover data from unrecognized USB flash drives, unreadable USB flash drives, and unmountable USB flash drives.
4 steps to recover data from unrecognized USB flash drive:
Step 1: Download and install iBoysoft Data Recovery for Mac.
You can't access your data when the USB flash drive is not showing up on Mac due to disk corruption. But with the assistance of iBoysoft Data Recovery for Mac, you can easily access your files and get them off the drive. So simply download and launch this USB drive data recovery software on your Mac.
Step 2: Launch iBoysoft Data Recovery for Mac.
After making sure the USB drive is properly connected to your Mac, hopefully, the USB drive will show up when you launch this software. You can click on the gears icon at the upper left for preference setup, and then check all 'Scan by' options. This will make it easier to find your lost photos, documents, Word files, videos, etc. on the USB drive.
Step 3: Scan for lost data from the unrecognized USB flash drive.
After setting how the software scans for lost files, you can go ahead to put it into practice by selecting the not showing up USB flash drive and clicking on the 'Scan' button.
Step 4: Check files' condition before you recover them from the unrecognized USB flash drive.
Once the scan process is finished, you can filter the scanning results and find files you want to get back. To ensure those files are in good condition in the corrupted USB stick, you can click to preview them before you finally click the 'Recover' button.
After you successfully recover data from the unrecognized USB flash drive, it is time to reformat USB drive.
4 steps to reformat the USB flash drive:
Step 1: Go to Utilities and open Disk Utility.
Step 2: Select the unrecognized USB flash drive from Disk Utility sidebar.
Step 3: Click Erase at the top toolbar.
Step 4: Finish the necessary information (name, format, and scheme) to format the USB flash drive.
After the process finished, the USB flash drive will show up on Mac correctly.
Fix 7: Ask for help from a local specialist
Mac Usb Doesn T Working
If the USB flash drive is not showing up in Mac Disk Utility and System Information, it might be physically failed. If you don' have any important data, you can simply replace the damaged USB drive with a new one. But if you have anything important, you'd better send it to a local specialist for data recovery help.
Bonus tips for using USB flash drive
The USB flash drive, pen drive, jump drive, or whatever you call it, is convenient but also fragile to store data based on its special memory units and shape. Then, how can we protect it from corruption and not showing up on Mac?
You may need these tips:
- Don't put USB flash drives in the pockets of your pants of T-shirt, especially, when it's naked. This could keep your drive away from moisture from your body and dust on your clothes. More importantly, it can avoid accident break off when you sit down or bump into something.
- Don't unsafely eject the USB flash drive. Even though it's inevitable for portable drives to be plugged and unplugged frequently, you can make sure you eject it safely and properly every single time.
- Create a backup of your data. Although you have been taking good care of your USB flash drive, you should know that it has a limited life span. Therefore, to avoid unexpected data loss, you'd better do a regular backup of your files.
If the sound on your Mac has stopped working, there are a number of possible explanations and solutions. The first thing to check is that the sound definitely is not working. Below we'll explain what to check.
No sound on Mac? Check these things first
1. Check the volume
As simplistic as it may seem, the first thing to check is that the volume hasn't been muted intentionally. Tap the volume up (F12) key to turn up the sound level.
Pro tip: If you hold down Option+Shift when you press F12 or F11 to increase or decrease the volume, it will move in smaller increments than the full step changes that occur when you use the keys on their own.
2. Is it an app problem?
It may be that there's no sound on your Mac because it won't play audio in a specific app. If, for example, you can't hear sound from a video in Safari, make sure the audio isn't muted, by clicking the volume control in the video. You should also check other sound sources, like iTunes and QuickTime movies to find out if they can play sound.
Tip: if you're fed up with websites you visit automatically playing video with sound when you're working, go to Safari>Preferences and click the Websites tab. Click Autoplay, and in the bottom right of the window, choose Stop Media with Sound.
Mac Usb Doesn T Works
3. Check for hardware issues
Next, check there's nothing plugged into the headphone/line out port and look to see if there's a red light on that port. If there is, it could be there's a problem with the port, or something blocking it. Try blowing on it to clear dust, if that's the case.
4. Are you running the latest version of macOS?
If there's still no sound on your Mac, Apple's advice is that the first thing you should do is make sure you're running the latest version of macOS.
To check which version of macOS your Mac is running, click the Apple menu and then About this Mac. The window that opens will have the name of the version of macOS currently installed at the top. Now the latest version is macOS High Sierra. If you're not running High Sierra, you should consider installing it by going to the App Store app, and clicking on it in the sidebar on the right hand side of the main window.
If you don't want to install High Sierra, at least make sure you're running the latest update to whichever version of the OS is installed. To check that, click Software Update in the About this Mac window. That will check for updates and let you know if there's one available. If there is, install it.
Before you install either a new version of the OS or an update, backup your Mac using Time Machine, or whichever backup tool you normally use.
5. Run Maintenance scrips
If you've determined your Mac's sound definitely isn't working, consider running CleanMyMac X's Maintenance scripts. These optimize the performance of your Mac by running a number of routines such as repairing disk permissions, verifying your startup disk, and rebuilding the launch services database.
Here's how to run Maintenance scrips:
Download CleanMyMac X here (it's free to download).
- Launch the app.
- Click Maintenance.
- Choose Run Maintenance Scripts and click Run.
Following this link, you can get CleanMyMac at 20% off.
How to check your sound settings
If you're running the latest version of macOS and your sound still isn't working, the next step is to check your Sound settings.
- Click on the Apple menu and choose System Preferences.
- Click on the Sound pane.
- Select the Output tab and choose Internal Speakers. If that's not available as an option, contact Apple Support.
- Check if the volume slider is low, if so slide it to the right and check the sound again.
- Make sure the Mute box isn't checked.
If, when you check your sound settings, you see a USB device selected rather than Internal Sound, and you can't change it, disconnect all USB devices from your Mac and try again.
Is there an app interfering with the sound?
Some applications, like screen recorders, install their own audio output drivers so that when you record the screen you can direct your Mac's output to the recording app. It's possible that if you've installed an app like that, its driver could be interfering with your Mac's sound output.
- Go to System Preferences and choose Sound.
- Click on the Output tab.
- If there's an output option that looks like a software app and it's selected, that may be why the sound is not working on your Mac.
The best thing to do in that instance is to uninstall the app. You could just drag the app to the Trash, but that won't uninstall it properly or remove all the files the app has placed on your Mac. To do that, you should use a dedicated uninstaller like CleanMyMac X.
CleanMyMac makes it very easy to completely uninstall any app so that it doesn't leave any fragments or stray files behind. By using CleanMyMac, you can be sure you've deleted all the files associated with the app and that it hasn't left anything behind. You can download CleanMyMac for free here.
Restart the sound controller
If there are no software audio drivers interfering with your Mac's sound output, nothing plugged into the headphone jack, USB, or Thunderbolt ports, and your sound still doesn't work, the next step is to restart the sound controller. This requires launching Activity Monitor and quitting a process, but don't worry, it's not too scary!
- Go to Applications>Utilities and double-click on Activity Monitor to launch it.
- In the search bar, type 'coreaudiod' to locate the Core Audio controller.
- Click on coreaudiod, then click ‘X' in the tool bar to quit it.
- Coreaudiod will restart.
Mac volume not working and stuck on mute?
If the volume control is not working on your Mac, either using the keyboard or the slider in the menu bar or System Preferences, it could be 'stuck' on mute. The most common occurrence of this problem is on pre-2015 Macs that had a digital audio output support in the headphone jack.
On those Macs, there was a sensor in the port that detected whether a headphone jack or a digital audio device was plugged in. The Mac would then change the output to headphones or digital output accordingly. However, sometimes the sensor failed to recognise when a digital audio device had been unplugged and so the audio output remained locked on digital output, with no way to change it. With no digital audio output connected, there is no way to change the volume or hear sound.
The solution in that case is to plug the cable back in to the socket and remove it again. Try it a few times, if necessary, to ‘trip' the sensor and make the Mac recognise the digital audio device is no longer connected. If that doesn't work, there could be some gunk blocking the socket. Try blowing on it to remove any dust. If that doesn't work, buy a can of compressed air and, carefully, spray the socket to bow out the dust.
If that still doesn't do the trick, buy a foam-tipped swab (don't use a cotton bud as these leave tiny threads behind) and dip it in rubbing alcohol. Put the swab into the headphone jack and clean it, wiping away as much of the link as possible.
Bluetooth sound not working on Mac
Your Mac can play audio wirelessly via Bluetooth, so if you have Bluetooth speakers or headphones, you can use those to listen to music, or anything else on your Mac. Sometimes, however, they don't work.
Make sure Bluetooth is switched on.
- Go to System Preferences and click the Bluetooth pane.
- If it says Bluetooth turned off, turn it on.
Make sure your headphones or speakers are connected.
- Look in the list of devices in the main window to see if your headphones or speakers are listed.
- If not, put them in pairing mode (you'll need to refer to their instructions to find out how to do that) and when they appear, click Connect.
- If they are listed but not connected, make sure they're switched on and Control-click on them in the main window and choose Connect.
Tip: If you check the box labelled Show Bluetooth in menu bar in Bluetooth preferences, you can connect from the menu bar item.
Once your headphones or speakers are connected, click on the volume control in the menu bar and choose them. If you don't have the volume control displayed on the menu bar, go to System Preferences, choose Sound and then the Output tab and select the Bluetooth speaker or headphones. While you're there, it's a good idea to check the box labelled Show volume in menu bar — it's in the Sound Effects tab.
To conclude, there are a number of reasons why the sound is not working on your Mac. If you follow the guide above and take it one step at a time, you should be able to fix the problem. If none of the steps above work for you, the next step is to contact Apple support and, if possible, make an appointment at the Genius Bar of an Apple Store. If that's not possible, Apple will advise you on the best course of action to get your audio working again.
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