https://lkys.over-blog.com/2021/01/apple-pro-photo-software.html. Art studio pro 2 3 16 bit. This article explains how you can fix when your Apple USB keyboard isn't working as expected. Touch id macbook air. 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.
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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.
Great solution: worked on my Macbook Pro 2017, where I had an apple usb keyboard connected to the two usb-c ports via a Satechi USB c hub. Suddenly the keyboard did not work anymore. Simply adding a usb extension cord did the trick! 0115 972 1120 Serving Nottingham Derby and Leicester with computer service for pc and mac. This is my own MacBoo. The machine will start to boot from the USB drive. Way 2: Set a Mac Boot from USB Drive using Startup Disk. When you use Startup Disk preferences to set Mac boot from an external drive, so it'll boot from that disk until you choose a different one. Here is how: Step 1: Go to Apple menu System Preference, then click Startup Disk. In this article we explore the steps you should take if the USB port on a Mac stops working and you're not sure why. Check the connection. We'll start with the simple stuff. And if even that does not work, try this command to see the disk as read-only. Diskutil mountDisk readOnly /dev/diskx. If it mounts, eject it using Finder and then physically unplug the usb cable from the drive. Restart your Mac and plug the USB cable back into your Mac and see if it shows up as Read/Write.
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.
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:
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- 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?
8. Delete preference files. Software mixer windows 7. 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?
If you are still unable to use your USB keyboard, you may want to contact its manufacturer for support.
Every operating system can crash at one time or another. While it's safe to say that macOS is more stable than Windows, it can still be affected by issues that prevent your computer from booting up. In such cases, you might need to boot your Mac from a USB flash drive to fix the problem. This article shows you two ways to boot Mac from external USB stick, as well as some troubleshooting tips in case Mac won't boot from the target USB.
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Boot Mac from USB Option l: Startup Manager
If your Mac won't boot up normally, you can set it to boot from a different drive, such as a USB stick containing macOS installation files in bootable format. The drive will have to contain a version of the OS that is compatible with the Mac. As long as you have the bootable installation USB, you can start your Mac from the USB by accessing the Startup Manager. Here are the steps to be followed:
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Step 1: Insert the bootable USB into Mac and power it on.
Step 2: As soon as the startup process begins, hold down the Option (alt) key and keep it depressed until you see the Startup Manager on your screen. If there is a firmware password on your Mac, hold down the Option key until you're asked to enter that password.
Step 3: You will now see the various startup disk options, and your USB will be listed there. If you click on the Up arrow right below the icon for the USB, the computer will only startup once using this disk. If you press and hold down the Control key while making your selection, it will be saved, and your computer will boot from the USB every time, as long as it is left in the computer.
At this point, you can also use the Mac installation disk to boot your Mac from. It will appear as EFI Boot, and it works on all computers running macOS 10.9 or higher.
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Boot Mac from USB Option 2: Safe Mode/Recovery Mode
As an alternative, you can start your Mac in Safe Mode (Recovery Mode). This will allow the system to automatically detect and repair directory issues. Safe Mode will only allow required kernel extensions to load, preventing login items and startup items to load automatically. It can also help you isolate the issue depending on whether or not the issue goes away in Safe Mode. If the issues you have during normal startup don't show up in safe mode, they are most likely fixed. That means you can reboot normally and your system should be back to normal.
Step 1: Start your Mac and hold down the Shift key. You will see the Apple logo on your screen.
Step 2: When you see the login screen, you can release the Shift key and login to your Mac.
Step 3: To check whether your Mac has booted into Safe Mode, click on the Apple logo on the top left and then on About this Mac. In the window that opens, click on System Report… You should be able to see this:
How to Fix Mac Won't Boot from USB Drive
Sometimes Mac won't boot from USB as expected. If you are unable to select a different startup disk, it's possible that your disk is not showing up in Startup Manager. If you try Method 1 above but don't see your USB drive listed there, it could mean one of the following problems:
Compatibility: It is possible that the version of macOS or Mac OS X that you have on the USB drive is not compatible with the hardware. That means you won't be able to see it in the Startup Manager so, of course, you won't be able to boot from it. In such cases, you may need to burn a compatible macOS version on USB drive in order to be able to boot Mac from it.
Startup Security Utility: In certain cases where your Mac has the Apple T2 Security Chip (2018 and later devices), it may be your Startup Security Utility settings that are preventing you from booting from USB. In this situation, restart your Mac and hold down the Command + R keys when you see the Apple logo. This will put your Mac into Recovery mode. In macOS Utilities, go to Utilities >Startup Security Utility and sign in as admin. Under External Boot, select the second option - Allow Booting from External Media.
Option ROM Firmware: Another known issue is that Option ROM firmware will not load in Startup Manager until you press certain keys manually. To do this, use Method 1 to access Startup Manager. Once you are there, press Option-Shift-Command-Period. You should now be able to see the USB drive. This is not exactly a problem as much as a feature. If the USB contains Option ROM firmware, you will need to press those keys everytime to boot from your pen drive.
These two methods and the troubleshooting tips should allow you to boot from USB or in Safe Mode so you can then isolate the problem that's preventing your Mac from booting up normally.
