Check out and follow to repair your USB flash drive to function normally again. My Mac just doesn't show any signal of the drive.
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I have important files on the drive and additionally would like to use USB on my Mac in the future. Please help me to get the missing USB flash drive to show up. Thanks in advance! We collected several fixes for you to try and make your USB flash drive detected by Mac computer. Step 2: Go to the "Genernal" tab, under "Show these items on desktop", make sure External disks is checked.
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Step 1: Open Terminal in Utilities, type: diskutil list and press Return. Replace 2 with the disk number of your USB flash drive. Step 4: Type: diskutil list and press Return. When the USB disappear from the Terminal list, close the window. After that, your USB will be detected and work again after the operations above. There, you can open the USB, check and use all existing files on the drive again.
Also, some of the above solutions Fix 3 and Fix 4 may also cause file loss when you apply to fix this error without awareness.
For example, USB drive becomes inaccessible or files disappear. If you are having file loss issue on the USB flash drive, follow Part 2 and you'll find a perfect data recovery resolution on USB flash drive. Click the device names to learn more about each one. Some virtualization software doesn't yet support USB 3. Contact the manufacturer of your virtualization software for more information. Some USB 3 devices can generate radio frequency interference that can cause Wi-Fi and Bluetooth devices operating in the 2.
Here are some tips to avoid this issue:. Information about products not manufactured by Apple, or independent websites not controlled or tested by Apple, is provided without recommendation or endorsement. Apple assumes no responsibility with regard to the selection, performance, or use of third-party websites or products.
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How to Make Your Mac Boot From a USB Drive
What is USB-C? What version of USB does my Mac support? What transfer rates does USB offer? USB 2 can transfer data up to Mbps. USB 1. What USB 3 devices are supported? Are USB 3 hubs supported? How do I get the best performance from the USB 3 ports? Usually have a blue insert.
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Next time you start your computer, it might revert back to booting from your internal hard drive. Click the lock and enter your password to change the settings. Select your USB drive from the list and click Restart.
The second method is to turn on your computer and hold down the Option key. Choose the external drive and hit Enter to continue booting. Both of these methods set the external drive as the default.
Therefore you can simply unplug it whenever you want to boot to your internal drive instead. When running macOS off an external drive, you still have to shut it down in the normal way. This could cause you to corrupt your data. You need a full computer reboot to switch from one drive to the other. The entire process of setting your Mac to boot from USB should take around half an hour at most.
Or you could install macOS on a flash drive, stick it in a drawer, and keep it for emergencies. Booting your Mac from a USB drive gives you a way to fix any boot problems your computer experiences.
How to Connect USB Devices to MacBook Pro
Our guide to troubleshooting all Mac boot problems will get it fixed quickly. Read More that should help get you up and running no matter what is wrong. Your email address will not be published. Top Deals. Email Facebook Whatsapp Pinterest Twitter. Enjoyed this article?