Before going ahead with these methods, make sure that the problem is with the USB Port and not with the USB device that you are trying to connect to the computer. To check, plug in another device into the USB port of your computer and see if it is working. If the new device is also not working, it confirms that the USB Port is not working. External drives not recognized by Windows 10: This is a problem that may befall both your flash drive and your external drive. The solution we will recommend can work for both. Windows USB is not working: Your PC may detect the USB drive but it may not work no matter what you do.
If the iMac has a built-in optical drive, Apple USB SuperDrive will not work with computer. BTW, only these Mac computers are compatible with external USB SuperDrive: MacBook Pro with Retina display, MacBook Air, iMac (late 2012), Mac Mini (late 2009) and later. A USB cable carries 5V and if this is the sole power source for the drive, it may not be enough. Use a USB power cable if you suspect this to be the issue. Depending on what you find here, you can.
Here are the steps I took to create the bootable USB drive (I have a Mid-2014 MacBook Pro with Retina Display): Downloaded the latest OS X El Capitan (10.11.3) from the Mac App Store. Created a bootable USB drive using createinstallmedia (as explained in Apple’s documentation) and it went well. Erased Macintosh HD. Tried booting from USB drive.
This article explains how you can fix when your Apple USB keyboard isn’t working as expected. If you see an error message, your keyboard keys suddenly stop working, your Mac is no longer recognizing your USB keyboard and you can’t figure out why; this article will help you fix your problem.
This is an important problem because you will not be able to use your Mac without a keyboard. Your keyboard is the main mode of input.
See also: Keyboard double space problem.
USB Keyboard fixes:
After each step please test to see if your keyboard is working:
1. Restart your Mac. It is simple but effective. Restarting your Mac may fix your issue. To restart your Mac, click the Apple menu > Restart.
2. Check your keyboard batteries if applicable. Some USB keyboards have batteries. Open the battery part of the keyboard and check to see if the batteries are placed correctly. Also, try replacing the batteries.
3. Check the USB connections. It is possible that your Keyboard is not properly connected to your computer. Try the following tips:
- Switch the keyboard’s cable to another USB port on the same Mac, if possible.
- Unplug your keyboard and replug it into your Mac firmly and securely.
- Ensure that there is not anything (debris, dirt, etc) obstructing the connection in the USB port. If there is, try to remove it.
- Disconnect all connected devices from your Mac. These can be a mouse, keyboard, printer, etc. Now reconnect your keyboard and mouse back into your computer. If you can use your Keyboard now the problem may be with one of the other devices. What you can do is to try replugging them one by one until you find the device that is causing the problem.
![Reading Reading](https://i.ytimg.com/vi/bOQx13Dxm8o/maxresdefault.jpg)
4. Reset the SMC of your Mac. Your USB port may be having a power-related problem and resetting the system management controller (SMC) can fix your problem with your keyboard.
- It is highly likely that this is a desktop computer. If it is, resetting the SMC is very simple. Follow the steps below:
- Shut down your Mac by choosing Shut Down from the Apple menu.
- Unplug it from the power outlet.
- Wait about 15 seconds.
- Now replug it into the power outlet.
- Wait another 5 seconds.
- Now start up your Mac by pressing the power button.
- If this is a Mac Notebook, the steps are a little different. We previously wrote about this topic. Please see that article on how you can reset the SMC.
5. Reset NVRAM or PRAM on your Mac. This is really easy. Here is how:
- Turn off your Mac.
- Turn on your Mac and quickly press Option, Command, P, and R keys together.
- Keep holding the keys for about 20 seconds.
- Then release the keys. Your Mac will restart.
6. Update your Mac. Update the software on your Mac. Here is how:
- If your current macOS version is Mojave or later (e.g., Catalina): On your Mac, go to Apple menu > System Preferences > Software Update. This will check for updates. If there is an update available, click the Update Now button.
- Other macOS versions: Launch the App Store on your Mac and click Updates.
7. Boot into Safe Mode. Restart your Mac in Safe Mode. Here is how:
- Turn off your Mac.
- Turn on your Mac and quickly press and hold the Shift key.
- Keep holding the Shift key until you see the login screen. Safe Mode can take up to 10 minutes so be patient.
- When your computer is in Safe Mode, test your keyboard, is it working now?
- In any case, restart your Mac normally. Do not press the Shift key.
- When your computer restarts, test your keyboard again. Did Safe Mode fix it?
![Drive Drive](https://www.fonelab.com/images/data-retriever/usb-flash-drive-not-showing-up-on-mac.jpg)
8. Delete preference files. Your preference file may be corrupt and deleting it may resolve your issue. Here is how:
- Open the Library folder. You can open this folder by following the steps below:
- On your Mac, click the Finder icon in the Dock.
- In the Finder, click Go.
- Hold down the Option key and you will see the Library folder in the Go dropdown menu. Click it to open.
- Click Preferences.
- Find the “com.apple.HIToolbox.plist” file. This is the Human Interface Toolbox settings file. The file stores keyboard default settings.
- Delete this file.
- Restart your Mac.
- Does your keyboard work now?
Macbook Usb Ports Not Working
Top photoshop software. If you are still unable to use your USB keyboard, you may want to contact its manufacturer for support.
Cause 3: DVD is scratched or dirty
Macbook Usb Not Working
'My favorite DVDs are scratched unexpectedly and the situation of DVD player MacBook Pro not working occurs when I put DVDs into DVD drive. How Can get a very dirty DVD to play on my DVD player?'
Solution Is apple magic keyboard compatible with pc. : Generally speaking, the default DVD player is very sensitive to the quality of DVD disc. If your DVD is scratched or dirty, your Mac DVD player may accept the disc (Mac DVD player skipping over damaged area) but there might be no sound coming from DVD player or the image quality on screen may be blurry; if your DVD is seriously scratched, the disc will directly become unusable.
As for small scratches on the surface of your DVDs, clean, polish and wax them to repair damaged DVD; for deep scratches on DVD, utilize super glue, a pin or toothpick to the damaged area to fix the badly scratched DVD disc. If nothing good happens, please resort to other free Mac DVD players like VLC, 5KPlayer and more, which can automatically skip over the damaged area when reading DVD internal data.
Macbook Usb Drive Not Working
As is known to all, most of deep scratches may be not repairable. Thus, you have to buy a new one or ask the publishers to send you a new copy in exchange for the damaged copy. Under this circumstance, you may lament, 'why I haven't made a digital copy for my favorite DVD?' If so, everything becomes much simpler. Now, it's not too late. Free download MacX DVD Ripper Pro and you can use it to repair damaged DVD disc and copy DVD computer, USB hard drive, ISO image, single MPEG-2 file, high quality MKV file, MP4 (HEVC), MP4 (H264), MOV, AVI, WMV, VOB, as well as iPhone 11, iPhone XS/XR, iPhone X, iPhone 8, iPads, Android, Microsoft device, PS4, etc.