How to reset thunderbolt ports on imac?

Press and hold the Command-Option-P-R keys immediately after you hear the startup sound. Hold these keys until the Mac restarts and you hear the startup sound for a second time. Release the keys.

In this regard, how do you reset ports on a Mac? 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.

Beside above, how do you reset Thunderbolt? 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.

You asked, why is my Mac Thunderbolt port not working? If your Thunderbolt device isn’t working, try any of the following suggestions: Check the device: Make sure the device is turned on and its cables are connected. … Check that you’re using the right cable: Make sure you connect the Thunderbolt device with a Thunderbolt cable, not a Mini DisplayPort cable.

You asked, how do I fix my Thunderbolt port? Release the keys and press the power button to turn on your Mac. Unplug the power chord and wait for 15 seconds. Then plug the cord back in. This should be able to resolve the Thunderbolt display not working.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.

Why are the USB ports not working on my Mac?

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.

How do I enable my Thunderbolt Ethernet?

1. Connect an ethernet cable from the Thunderbolt Express Dock to your router or existing network. Connect the supplied Thunderbolt cable from the MacBook to the Thunderbolt Express Dock.
2. You should be able to see the Thunderbolt Ethernet Slot.
3. Click on the plus sign.

How do I update Thunderbolt Firmware IMAC?

1. Shut down your Mac. Unplug Thunderbolt display.
2. Boot back up, with your Mac lid/screen open (with Thunderbolt display still unplugged).
3. Plug in your Thunderbolt display. Run the update/installer. Installer will prompt a restart.
4. Restart.

How do I know if Thunderbolt is working?

1. Click Control Panel.
2. Click Hardware and Sound.
3. Click Device Manager.
4. Double-click Chipset and check under the PCI Express Root to see if all your Thunderbolt connections are functioning correctly.

How do I know if my Thunderbolt 3 port is working?

How do i find out if my computer, display or cable is Thunderbolt™ capable? The port’s appearance is physically the same as miniDP (DisplayPort™). To confirm you have a Thunderbolt™ port on your computer, display, or cable check for the Thunderbolt™ symbol next to or above the port or connector.

How do I enable Thunderbolt port on Mac?

Click Apple () in the menu bar, hold the Option (⌥) key, and click System Information. Click Thunderbolt under the Hardware section, and ensure that your connected Thunderbolt 3 device is being recognized as an unsupported device.

How do I clean my Thunderbolt port?

Try using a toothpick to scrape both sides of the connector, then holding the laptop with the port facing the floor, blow compressed air in it. You may need to use a knife to narrow the toothpick to fit properly.

How do I reinstall Thunderbolt firmware?

Select Get software and drivers, enter your computer model number (located on the computer service label), and then select Find my product. Click the link for your specific computer, select your operating system, and then download the latest.

How do I update my Thunderbolt Display firmware?

1. Choose About This Mac from the Apple () menu.
2. Click System Report.
3. Click Thunderbolt in the list on the left and find the Thunderbolt Display section. The Firmware Version should be 26.2 and the Port Micro Firmware Version should be 2.0. 7 after the update.

Why are the USB ports on my computer not working?

There are several reasons why a USB device is not recognized. You could have a damaged device, or there could be a problem with the port itself. … Computer has difficulty detecting USB devices. The USB Selective Suspend feature is on.

How do I fix an unresponsive USB port?

1. Restart your computer.
2. Look for debris in the USB port.
3. Check for loose or broken internal connections.
4. Try a different USB port.
5. Swap to a different USB cable.
6. Plug your device into a different computer.
7. Try plugging in a different USB device.
8. Check the device manager (Windows).