Follow this tutorial on How to Repair macOS on Mac. Tap on Run to start the repairing process. From the Sidebar, select your macOS drive partition and Select First aid. On your Mac, use Spotlight searches and Try the Disk Utility window. So I recommend Repaid DISK macOS without Reinstall or Erase your Mac. Sometimes corrupted MacOS Version or Buggy software installed on Mac changes the file system of Mac. Follow the on-screen instruction and hope you get a fixed USB port not working or unblock again.Next, press and hold until you see the macOS Utility window on the screen. On intel mac:- After the Mac Startup sound press and hold command + R key from the keyboard.Click on Options > See MacOS Recovery screen and log in to your Mac > Now, Click on, Reinstall macOS from the macOS Recovery screen. On M1 Mac:- Shutdown your Mac, and after 10 seconds, Press and Hold on the Power button until you see the Startup volume and Options on Screen.This reinstallation process never loses the data from your mac. Otherwise, fix all the problems with Reinstall the Latest version of macOS on Mac. So people are using Bluetooth accessories. Sometimes internet software issues unable to detect your Mac Accessories on the USB port. Still not fixed or Don’t have a USB port backup on your Mac. Listen sound for the chime sound and your Mac will boot up.Hold down the keys until you hear a startup sound and the mac screen will flash.Now, Turn on again, holding down these keys, Command+Option (ALT)+P+R at the same time.First, turn off your Mac (Apple Logo > Shut Down).Then, Reconnect the original apple power cord and switch the Mac back on using the turn-on button.After that press and hold the Power button for 5 seconds and release.Now Disconnect the power cord from the plug.First Shut down your Mac (Apple logo > Shut down).Resetting the SMC on an iMac, Mac mini, or Mac Pro Now your MacBook Restart/Turn on itself after SMC reset.Then Release all the keys at the same time.After that use these keyboard keys and Hold Shift+Control+Option and the Power button at the same time.Now, Connect your MacBook with the power adapter.First Shutdown ( Apple logo > Shut Down.) your MacBook.Solution 2: Reset SMC or PRAM/NVRAMįollow the resetting SMC/PRAM/NVRAM process on Intel Mac, But M1 Mac needs to Restart only Place back backup iOUSB port files from the backup folder to the extensions folder. To unblock locked USB port on Mac Running the latest version of macOS. After successfully run, Restart your Mac and Test once.Ħ Solutions to Re-Enable or Unblock USB Port on Mac Solution 1: Move Backup Files to the Extensions folder.enter “csrutil disable” and Hit the return button to run the command.From the top Mac menu bar, Utilities > Terminal. Until you see the Disk Utility window on Mac Screen. After that Startup sound Press and Hold the Command + R key from the keyboard. Turn off your Mac, and turn it on again.Important, here, access Terminal in macOS Recovery. CP /System/Library/Extensions/IOUSBMassstorageClass.kext ~/backup/ Sudo srm -rf /System/Library/Extensions/IOUSBMassStorageClass.kext Sudo touch /Sytem/Library/Extensions Run below three common commands from the terminal, To open the terminal, Search easily from spotlight search by type “Terminal”. Second Alternate Way Using Terminal: Block or Disable USB port on Ma c And test once the USB drive is detecting or not. Note: Files you have to move into the trash and also clear trash. select these two files and move them into a backup folder before deleting them from the Extensions folder.įind and Delete USB Driver file from Mac folder
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