Hubs Connection Problems After Upgrading MacOS
Question:
After using "Software Update" to search and install MacOS on Apple&x27;s computer, why the USB-C hub not being recognized or not functioning normally?
Answer:
So far we are not sure the cause of the problem, but you could try the following steps to make your hub reconnected.
Firstly, determine theCPU of your Mac
Select "About This Mac" from the Apple menu, and check the CPU type of your Mac.
①If your Mac is equipped with an Intel CPU, please try the first/ second/ final attempt one by one.
②If your Mac is equipped with an Apple CPU, please try the final attempt directly.
Firstattempt (reset SMC)
If your Mac have a T2 chip:
MacBook
Before resetting the SMC, try these steps:
Shut down your Mac.
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.
If the issue persists, follow these steps to reset the SMC:
Shut down your Mac.
On your built-in keyboard, press and hold all of the following keys. Your Mac might turn on.
Control on the left side of your keyboard
Option (Alt) on the left side of your keyboard
Shift on the right side of your keyboard
3.Keep holding all three keys for 7 seconds, then press and hold the power button as well. If your Mac is on, it will turn off as you hold the keys.
4.Keep holding all four keys for another 7 seconds, then release them.
5.Wait a few seconds, then press the power button to turn on your Mac.
Mac
Shut down your Mac, then unplug the power cord.
Wait 15 seconds, then plug the power cord back in.
Wait 5 seconds, then press the power button to turn on your Mac.
If your Mac doesn&x27;t have the Apple T2 Security Chip:
MacBookwith anon-removablebattery
This applies toMacBook Promodels introduced in mid-2009 through 2017,MacBook Airmodels introduced in 2017 or earlier, and allMacBookmodels except the MacBook (13-inch, Mid 2009).
1.Shut down your Mac.
2.On your built-in keyboard, press and hold all of these keys:
Shift on the left side of your keyboard
Control on the left side of your keyboard
Option (Alt) on the left side of your keyboard
3.While holding all three keys, press and hold the power button as well.
4.Keep holding all four keys for 10 seconds.
5.Release all keys, then press the power button to turn on your Mac.
MacBookwith a battery that can be removed
This applies to allMacBook ProandMacBookmodels introduced in early 2009 or earlier, as well as the MacBook (13-inch, Mid 2009).
Shut down your Mac.
Remove the battery. (If you need help removing it, contact anApple StoreorApple Authorized Service Provider.)
Press and hold the power button for 5 seconds.
Reinstall the battery.
Press the power button to turn on your Mac.
Other Mac
Shut down your Mac, then unplug the power cord.
Wait 15 seconds, then plug the power cord back in.
Wait 5 seconds, then press the power button to turn on your Mac.
Seconedattempt (reset NVRAM or PRAM)
Shut down your Mac, then turn it on and immediately press and hold these four keys together: Option, Command, P, and R. You can release the keys after about 20 seconds, during which your Mac might appear to restart.
On Mac computers that play a startup sound, you can release the keys after the second startup sound.
OnMac computers that have the Apple T2 Security Chip, you can release the keys after the Apple logo appears and disappears for the second time.
If your Mac is using afirmware password, this key combination does nothing or causes your Mac to start up frommacOS Recovery. To reset NVRAM, first turn off the firmware password.
When your Mac finishes starting up, you might want to open System Preferences and adjust any settings that were reset, such as sound volume, display resolution, startup disk selection, or time zone.
Finaltry (reinstallMacOS)：
Use MacOS Recovery to reinstall the Mac operating system.
1.Start up fromMacOS Recovery
Determine whether you&x27;re using a Mac with Apple silicon, then follow the appropriate steps:
Apple silicon: Turn on your Mac and continue to press and hold the power button until you see the startup options window, which includes a gear icon labeled Options. Select Options, then click Continue.
Intel processor: Make sure that your Mac has a connection to the internet. Then turn on your Mac and immediately press and hold Command (?)-R until you see an Apple logo or other image.
If you&x27;re asked to select a user you know the password for, select the user, click Next, then enter their administrator password.
2.ReinstallMacOS
Select Reinstall macOS from the utilities window in macOS Recovery, then click Continue and follow the installer&x27;s instructions.
Follow these guidelines during installation:
Allow installation to complete without putting your Mac to sleep or closing its lid. Your Mac might restart and show a progress bar several times, and the screen might be empty for minutes at a time.
If the installer asks to unlock your disk, enter the password you use to log in to your Mac.
If the installer doesn&x27;t see your disk, or it says that it can&x27;t install on your computer or volume, you might need toerase your disk
If the installer is for a different version of macOS than you expected,learn about other installation options, below.
If the installer offers you the choice between installing on Macintosh HD or Macintosh HD - Data, choose Macintosh HD.
After installation is complete, your Mac might restart to a setup assistant. If you&x27;reselling, trading in, or giving away your Mac, press Command-Q to quit the assistant without completing setup. Then click Shut Down. When the new owner starts up the Mac, they can use their own information to complete setup.
Other macOS installation options
By default, macOS Recovery installs the latest macOS that was previously installed on your Mac.* You can get other macOS versions using one of these methods:
On an Intel-based Mac, you can use Option-Command-R at startup to upgrade to the latest macOS that is compatible with your Mac. Exceptions:
IfmacOS Sierra 10.12.4 or laterwas never previously installed, you will receive the macOS that came with your Mac, or the closest version still available.
If your Mac has theApple T2 Security Chipand you never installed a macOS update, you will receive the latest macOS that was installed on your Mac.
On an Intel-based Mac that previously used macOS Sierra 10.12.4 or later, you can use Shift-Option-Command-R at startup to install the macOS that came with your Mac, or the closest version still available.
Reinstall macOS from the App Store instead of using macOS Recovery. If you can&x27;tinstall the latest macOS, you might be able toinstall an earlier macOS.
Create a bootable installer, then use it to install macOS on your Mac or another Mac.