- Shut down the Mac and connect the power cable.
- Hold down Shift+Control+Option+Power concurrently for a few seconds, when the light on the power adapter blinks or changes colors you’ll know SMC reset is complete.
- Release all keys at the same time.
You asked, how do I reset my USB ports on my MacBook Pro? Press and hold down the Control + SHIFT + Option (Alt) + Power (Eject) keys together on your computer’s built-in keyboard for 10 seconds, and then release the keys. This resets the System Management Controller (SMC) on your MacBook Pro.
Considering this, why are my MacBook Pro USB ports not working? If a USB device isn’t working properly, make sure it’s connected to your computer correctly, is plugged into a power outlet if it has a power cord, and has any necessary software installed. Check the power, port, and cable connections: Make sure the USB device is turned on and its cables are properly connected.
Moreover, how do I fix a malfunctioning USB port?
- Restart your computer.
- Look for debris in the USB port.
- Check for loose or broken internal connections.
- Try a different USB port.
- Swap to a different USB cable.
- Plug your device into a different computer.
- Try plugging in a different USB device.
- Check the device manager (Windows).
Additionally, how do I enable USB ports on my MacBook Pro? On the MacBook/Pro’s keyboard, hold down the Shift+Control+Option keys and the Power button at the same time. Release all keys and the power button at the same time. Boot your Mac as usual.Right-click one of the USB controllers and then click Uninstall device. Repeat this for all the USB controllers on the list. Step 4: Restart your computer. Windows will automatically scan the system and reinstall the uninstalled USB controllers, which resets your USB ports.
How do I check the USB ports on my MacBook Pro?
- Click the Apple icon.
- Click About This Mac.
- Click More Info or System Report.
- Under the appropriate heading, confirm that your USB device is listed and that there isn’t an error. For example, a network card would be under Ethernet Cards.
How do I disable USB ports on MacBook Pro?
- Turn off your Mac, and turn it on again. After that Startup sound Press and Hold Command + R key from the keyboard.
- enter “csrutil disable” and Hit the return button to run the command.
- After successfully run, Restart your Mac and Test once.
Why is my Thunderbolt port not working?
The main problem is most likely coming from your connected computer. Take the thunderbolt cable and unplug it from your connected computer. Wait a few seconds and then plug the cable back in. If the problem continues, try restarting your computer.
Why won’t my USB show up on my Mac?
If your flash drive or external hard drive is not showing up there, go to Finder > Preferences > Sidebar, and under Locations, you need to tick the option “External disks”. By selecting this option, we can make sure that the connected external USB hard drive or flash drive will normally show up in the Finder.
What causes USB ports to malfunction?
In many cases, a malfunctioning port is simply caused by outdated driver software. With the latest drivers, your port can be used with current USB devices without any problems.
What causes USB ports to stop working?
Potential culprits of USB ports not working correctly are: The USB device is broken. … Computer has difficulty detecting USB devices. The USB Selective Suspend feature is on.
Why did my USB ports suddenly stop working?
The USB device may become unresponsive because of a race condition in the Selective Suspend feature. The Selective Suspend feature suspends the USB device to efficiently maintain battery power by enabling the computer to turn off the USB device. However, sometimes this feature may not correctly wake up the USB device.
How do I enable USB on MacBook?
- Disconnect and reconnect the external device to your Mac.
- Connect your external device to a different port on your Mac.
- If your external device is connected to a USB or Thunderbolt hub, connect your device directly to your Mac.
Can you replace USB port on MacBook Pro?
If your MacBook USB-C ports continue to be loose, then we’ve got good news and bad news for you. The good news is that the ports are replaceable. If your laptop is less than a year old or covered under AppleCare, then Apple might replace them free of charge.
Why does my Mac keep saying USB accessories disabled?
Sometimes, USB accessories are disabled because of a faulty or counterfeit USB cable. If your USB cable is certificated or it is damaged, the “USB accessories disabled” error is triggered. Just try another cable till you are sure the cable is fine.
How do I enable USB ports?
- Click the Start button and type “device manager” or “devmgmt.
- Click “Universal Serial Bus controllers” to see a list of USB ports on the computer.
- Right-click each USB port, then click “Enable.” If this does not re-enable the USB ports, right-click each again and select “Uninstall.”