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#Mac restart usb ports how to
#Mac restart usb ports install

Unfortunately, you’re more than likely going to need to erase the drive and start over. Knowing if you have the Apple T2 Security Chip will really help you through this process.

#Mac restart usb ports how to

How to Fix the Version of macOS on the Selected Disk Needs to be Reinstalled?

#Mac restart usb ports install

I’ll also briefly go over some reasons why a Mac update may not install to disk. While some users may not like the answer, there is a solution in sight. I’m going to show a solution for those using both Intel- and Apple-based processors. Gathering this information together, I’m going to take a look at what a user needs to do if they’re having issues after receiving a “Selected disk needs to be reinstalled” error. While this may sound like an incredibly frustrating experience, there is something that you can do about it. Sounds easy, right? Well, what happens if you click another startup disk and nothing happens? Even worse, going to Recovery doesn’t solve your issue, either. It may also then go on to say “Use Recovery to reinstall macOS or select another startup disk”. When you turn it on, you see the message “The version of the macOS on the selected disk needs to be reinstalled”.

On Mac computers that have the Apple T2 Security Chip, you can release the keys after the Apple logo appears and disappears for the second time.Here’s a scenario you might find yourself in: say you get a used MacBook.

On Mac computers that play a startup sound, you can release the keys after the second startup sound.

You can release the keys after about 20 seconds, during which your Mac might appear to restart. Shut down your Mac, then turn it on and immediately press and hold these four keys together: Option, Command, P, and R. To reset the PRAM/NVRAM on your Mac, please do the following:

Press the power button again to turn on your Mac.

Shift on the left side of your keyboard.

On your built-in keyboard, press and hold all of these keys:.

Keep holding all four keys for another 7 seconds, then release them.įor devices that do not have the T2 security chip: If your Mac is on, it will turn off as you hold the keys.

Keep holding all three keys for 7 seconds, then press and hold the power button as well.

Shift on the right side of your keyboard.

Option (Alt) on the left side of your keyboard.

Control on the left side of your keyboard.

On your built-in keyboard, press and hold all of the following keys.

If the issue persists, follow these steps to reset the SMC:

Press and hold the power button for 10 seconds, then release the button.

Wait a few seconds, then press the power button to turn on your Mac.įirst, check to see if your MacBook has the T2 Security Chip (see ).įor devices that have the T2 security chip:īefore resetting the SMC, try these steps:.Disconnect the cable, wait 30 seconds, then reconnect the cable.To reset the SMC (or do a reset similar to the SMC on M1 Apple devices): Once completed, skip to the PRAM/NVRAM resetįor all hardline Apple computers (iMac, Mac Mini, etc.) Wait 30 seconds, then open the lid press the power button to turn on your Mac.Once the computer is completely shut down, close the lid of the MacBook.These Macs do not have an SMC, but there is a way to do a reset similar to the SMC reset: This is sometimes necessary to restore normal lower level system functionality to your Mac, particularly for power and hardware related troubles. Resetting your Mac System Management Controller (SMC) and/or the Mac PRAM/NVRAM can be a solution. If you have lost this cable, you can either get a USB-C cable that supports 10Gbps, 100W power, and DisplayPort 1.4/HDMI 2.0 or reach out to us and we will let you know what your options are* This has fixed a majority of connectivity issues with this Hub particularly. This cable is underneath the black plastic that held the Hub in place. *For 18 port users, please ensure you are using the cable that comes with the Hub.