USB configuration options Not Showing On Android When Connected To PC How to Fix Charging Only When Connect Phone to PC via USBMy Computer Doesn't Recognize. Connect your USB device to your Mac. Make sure the device is detected on the Mac side: In case of an external storage device it should appear in Finder; In case of other devices (eg. Mobile phone): Open System Information (Applications Utilities System Information), click System Report; Locate your device under the USB section. Put your Mac to sleep and then wake it after a few seconds. This typically solves the 'pink' problem, resyncing the external monitor. Turn the external monitor off, wait a few seconds, and then.
Before we get into the software fixes, let's start with the simplest solution of all: restarting your Mac. Switch the Mac off and back on again. You'll be surprised at how many problems a quick restart solves.
- If the drive is showing here, but not on the OS X desktop, then click First Aid to try and repair the drive. If the drive has a file system not recognized by OS X, you'll need to erase it and the format it using FAT or HFS+. If the drive is not showing up in Disk Management or Disk Utility at all, you have some other type of problem.
- When the scan to complete and then check your USB device to see if it works. Another option is to disable and re-enable the USB controller. In the device manager, click the arrow next to the little USB cable so that it points down instead of to the right. Right-click on the first USB controller in the list and select Uninstall device.
Next, check the USB device. There's a chance that it could have failed, particularly so if you're using a cheaper cable. Inspect the device visually, looking for damage to the connector and any signs of frayed wiring. If there is no apparent damage, take two different USB devices and test them against different ports. If the devices aren't working on one or all of the ports it's more likely to be an issue with your Mac and not the device.
A USB device that works on one port but not another is a sign of a faulty port. If this is the case, the only real solution is to contact an authorized Mac specialist for a hardware diagnostics test and have the port repaired.
If the device doesn't work in any of your ports, then continue reading for some potential fixes.
What to do if Mac USB devices are not working
All of your Mac or MacBook USBs not working is actually better news than one failing. It's unlikely that all of your ports would fail at once which means the fix is probably an easy one.
Here are three things to try, starting with the most common fix.
1. Reset the SMC
Resetting the SMC (System Management Controller) is a simple fix that cures a wide range of hardware issues. How this is done depends on whether you're using a MacBook or Mac desktop.
Resetting the SMC on a MacBook
- Shutdown your MacBook.
- Connect the power adapter.
- Hold Shift+Control+Option and the Power button at the same time.
- Release all the keys at the same time.
- Let your MacBook boot up as usual and the SMC will be reset.
Resetting the SMC on an iMac, Mac mini, or Mac Pro
- Shut down your Mac.
- Disconnect the power cord.
- Press and hold the Power button for 5 seconds and release.
- Reconnect the power cord and switch the Mac back on.
2. Check for updates
Outdated firmware and software results in various hardware issues, including.. Yep — Mac USB ports not working.
Usb Boot Drive Not Showing Up On Mac
Check for system updates by opening the App Store and clicking on the Updates tab. If updates are available, click on the Update button next to each application that you want to install.
3. Reset PRAM/NVRAM
The PRAM (Parameter RAM) and NVRAM (Non-Volatile RAM) hold information about various USB components. Resetting them could be the solution to your USB woes.
It's a slightly different process to resetting the SMC, but no less difficult. Mac snip shortcut.
- Shutdown your Mac.
- Restart it, holding down Command+Option (ALT)+P+R as you do.
- Hold down the keys until you hear a sound and see the screen flash.
- Listen for the chime sound and let the Mac boot up as usual.
4. Uninstall potentially conflicting apps
If the USB ports not working on your MacBook Pro or iMac is a recent issue and there doesn't seem to be any problem with USB devices, it could be that an app is conflicting with USB functionality. If you've downloaded an app from an unknown source there is the potential for it to contain malware, which could also be the cause of the problem.
In any case, it's worth uninstalling recently downloaded and installed apps. If they aren't the reason for the USB ports acting up, you can easily reinstall them from the App Store.
One way to remove apps is to use Launchpad or Finder. Or you can use a quicker, more effective method: CleanMyMac X.
To completely remove an app and every file associated with that app, use CleanMyMac.
CleanMyMac's Uninstaller tool scans your entire system for every trace of an app and completely removes it. Using the tool is every bit as easy as deleting an app manually.
- Download and launch CleanMyMac (free download).
- Click on Uninstaller from the sidebar menu.
- Select the app that you want to remove from the list.
- Click Complete Removal in the Smart Selector panel.
- Hit Uninstall.
While CleanMyMac lets you uninstall apps in bulk, in this case, you should delete apps one at a time until you find the culprit. CleanMyMac also lets you clean up unwanted junk, declutter your Mac and improve performance.
One way to uninstall apps manually is by using the Launchpad:
- Open the Launchpad.
- Find the app that you want to remove and click and hold the icon until it starts to jiggle.
- Click on the X that appears in the corner of the app, then click Delete.
You can also uninstall apps from the Finder:
- Open the Finder and go to Applications.
- Find the app that you want to remove and drag its icon to the Trash (you might need to enter your admin credentials to confirm you want to delete the app).
- Click on the Trash icon and select Empty Trash.
Having one or more USB ports not working on your Mac can be hugely frustrating, especially if you rely on those ports for data backup and external peripherals. That said, USB problems are quite rare and are usually easy to fix. Work your way through these troubleshooting tips until you find the one that works and restore your Mac to its full glory.
Summary :
Expecting to see the USB drive on desktop after connecting it to Mac? Mac may disappoint you sometimes: your flash drive may be not detected. Why is this happening? How to fix when USB not showing up on Mac? Find your answers in the following content provided by MiniTool Solution. Besides, it shows you how to troubleshoot when internal hard drive not showing up.
USB Not Showing Up on Mac
Many people are complaining about the same problem on the internet: USB not showing up on Mac (flash drive not showing up Mac, SD card not showing up Mac, or thumb drive not showing up Mac). Most of the time, the flash drives are connected to Mac through USB, but you may be disappointed to find out that Mac won't recognize USB sometimes.
Various solutions are provided for you to fix USB flash drive not recognized error and recover data from the inaccessible flash drive.
Can you fix USB not showing up on Mac? How to find SD card on Mac? Actually, the methods and solutions are similar to hard drive not showing up on Mac.
Data recovery tool for Mac:
Data recovery tool for Windows:
Reason 1: Connection Problem
Connection issue is one of the most important reasons why your USB drive not showing up Mac. The broken cable/port, or insufficient/unstable power supply could make your Mac not recognizing USB. When find your flash drive doesn't appear on Mac after connection, you should first do the following things:
- Check the connections and USB cable.
- Change or reset the USB ports.
- Make sure the power supply is enough.
Reason 2: Improper Finder Preferences Settings
You should go to change the Finder Preferences:
- Open Finder.
- Click Finder and select Preferences.
- Check External disks under both General tab and Sidebar tab.
Reason 3: Errors Detected on USB
Please run First Aid to repair your USB flash drive:
- Open Finder.
- Select Applications.
- Choose Utilities.
- Click Disk Utility.
- Select your USB drive from the left pane.
- Click First Aid at the top of the right pane.
- Choose Run in the confirmation window.
In addition, you can check the USB drive and fix it in Terminal.
Reason 4: Not Supported File System
How to reformat the USB drive to a File System that can be supported:
- Navigate to Disk Utility.
- Select the USB drive.
- Select Erase at the top.
- Choose a proper file system.
- Give it a new name or specify a proper file system (optional).
- Click on the Erase button and wait.
Other possible ways to fix USB not showing up on Mac:
- Check the USB flash drive in System Information.
- Reset SMC (how to the SMC of your Mac?)
- Update macOS and firmware.
- Reinstall or update the USB driver.
- Get professionals to help you.
That's all about how do I get my Mac to recognize my USB.
Internal Hard Drive Not Showing Up Mac
What about hard drive not showing up? Please read this page when external hard drive not showing up on Mac. As for the internal hard not showing up problem, I'll discuss it in 2 situations: Mac can start up and Mac can't start up.
Mac Can Start up
If your Mac can still boot up when the internal hard drive is not showing up, please try the following fixes.
Fix 1: modify Mac settings.
- Go to Finder -> Preferences -> General, and make sure the Hard disks option is checked.
- Go to Finder -> Preferences -> Sidebar, and make sure the Hard disks option is checked.
- Go to Finder -> move your cursor to the Locations section in the left panel. When you see the word 'Show' or 'Hide', please click to change it and then check whether the internal disk appears.
Fix 2: check in Disk Utility.
- Try to mount the internal hard drive manually.
- Run First Aid to repair the internal disk.
Mac Can't Start up
Usb On Mac Not Showing Upside Down
If your Mac doesn't boot up as usual, you won't be able to access the internal disk. In this case, you should follow these fixes to repair.
Mac Usb Drive Not Found
Fix 1: repair in macOS recovery mode.
You should boot into the macOS Recovery mode and run First Aid:
- Press and hold Command+Option+R Release these keys when an Apple logo or spinning globe appears.
- Choose Disk Utility from the menu.
- Select the internal hard drive from the left panel.
- Click First Aid and wait for the repair process to end.
Fix 2: check in Terminal.
You can use terminal to check the internal hard drive, especially the internal Fusion drive since it is split into an extra SSD and a hard drive. This kind of drive is invisible to users unless you check it in Terminal.
Please note:
Stellar Data Recovery for Mac is also useful if you want to recover data from an unbootable Mac. Here's how to recover data from the corrupted internal hard disk on Windows.
