This is where we can see that “USB accessories are disabled”.
How to Solve USB Accessories Disabled/USB Devices Disabled?
There are many solutions to different situations. These solutions can be used to solve your USB Accessories Disabled/USB Devices Disabled problem until you find the correct one.
How to fix USB Accessories Disabled/USB Devices Disabled
- Use your device as a self-powered device
- Use a powered USB or thunderbolt three hub
- Unplug the unnecessary USB devices
- Plug the USB device directly into Mac
- Make sure you’re using the proper port and cable
- Try a special cable or adapter
- Try another port
- Reset SMC
- Reset PRAM/NVRAM
- Update the driver or Firmware
- Turn on your USB device
- Ask knowledgeable for Help
Solution 1: Use Your Device as a Self-Powered Device
Most cases of the USB Accessories Disabled/USB Devices Disabled problem are caused by insufficient power. You can still use your device as a self-powered device, however, because it can be powered by a wall socket or its own battery.
Solution 2: Use a Powered USB or Thunderbolt 3 (USB-C) Hub
If you have a USB hub, you can connect it to a USB-C or powered USB hub. These ports can supply power to computers. This will solve the problem of not having enough power for your USB device.
Solution 3: Unplug the Unnecessary USB Devices
Your computer will use more power if you have more USB devices connected to it. To ensure enough power, reduce the number of USB devices that are connected to your Mac. You will unplug any USB devices that you don’t use.
Solution 4: Plug the USB Device Directly into Mac
The facility supply for your USB device will be affected if it has been connected to your Mac using a multiport USB adapter. You will then need to unplug your USB device from the adapter and plug it directly into your Mac. You should see the USB Accessories Disabled/USB Devices Disabled issue disappear.
Solution 5: Confirm you’re using the proper USB Port and Cable
You might find that the USB port or cable you are using does not support your USB device. If the USB device has USB 3 specifications, it won’t get enough power if it is connected to your Mac using a USB 2 or cable.
You should check the specifications of your USB device to ensure that you are using the correct cable and port. You can use the correct accessories if you don’t.
Solution 6: Try a special Cable or Adapter
If none of the above options work, you might need to check if the cable is damaged or defective. To determine if everything can be restored to normal, you will need to use another cable. If you are using a USB adapter, another adapter will be needed to give it a go.
Solution 7: Try another Port
If you have more than one Thunderbolt 3 port on your Mac device, unplug it from the current Thunderbolt 3 Port and then connect it to another port. As an example, if you have a USB device that is plugged into the port on the left of your MacBook Pro, then you will connect it to the Thunderbolt 3 port to give it a go.
Solution 8: Reset SMC
The physical parts of a Mac device are managed by the System Management Controller (also known as SMC). These physical parts include battery management, USB accessories connections, and many other things.
Imagine that you have encountered the USB Accessories Disabled/USB Devices Disabled problem on your Mac. You can reset SMC to have a go in this case as it may resolve certain power issues.
Solution 9: Reset PRAM/NVRAM
Both PRAM (short for Parameter Random Access Memory) and NVRAM (short for Non-Volatile Random Access Memory) are wont to store Mac system settings like sound volume, display resolution, startup disk selection, time zone, and more.
Some users have reported that they solved the USB Accessories Disabled/USB Devices Disabled issue using reset PRAM/NVRAM. This solution is also possible:
- Shut down your Mac.
- Press and hold the Command, Option, R, and P keys at an equivalent time once you activate your Mac.
- Release these four keys after about 20 seconds, during which your Mac may restart.
- If your Mac device plays a startup sound, you would like to release these four keys after hearing the second startup sound.
- If your Mac device has the Apple T2 Security Chip, you would like to release these keys when the Apple logo appears and disappears for the second time.
Solution 10: Update the driver or Firmware
If your Mac’s Firmware or driver is out of date, you might also experience the USB Accessories Disabled/USB Devices Disabled issue. You can try updating the driver to rule out this possibility. To get the latest version, you will need to visit the official website of the manufacturer.
To update the Firmware for your Apple accessories, you would like to update your Apple software by clicking Apple logo > System Preferences > Software Update to see for updates and follow the guide to finish the system upgrade.
Solution 11: activate Your USB Device
After connecting a camera to your Mac via cable, the camera will continue to be activated. If you don’t, USB Accessories Disabled/USB Devices Disabled can easily occur. You can confirm by pressing the facility button on your camera.
Solution 12: Ask knowledgeable for Help
You should take the problem seriously if none of the solutions work. It won’t be easy to solve. It is safer to send your Mac device (and, therefore, your USB device) to them and ask for their help. For example, you can ask your local Apple Store to help.
USB Accessories Disabled Mac FAQ
1. 1.Can a USB port supply power to a device
Yes, power can be provided by a USB port to charge a USB device. A USB 3 cable, for example, can provide the power of up to 900 milliamps. The bus can draw power directly from a low-power device. High-power devices have their own power supply and draw less power from buses.
2. What is the best way to get my Apple USB SuperDrive working?
For further use, you can connect your SuperDrive via a USB A port to your Mac. But, what if you want to attach your SuperDrive directly to a Thunderbolt 3 port (USB-C), or USB-C port? You may also be able to use an adapter such as the USB-C Digital AV Multiport Adapter or USB-C VGA Multiport Adapter.
3. Is there a USB port on the magic keyboard?
Magic Keyboard could be a new keyboard that works on Mac. There are three main features: a hinge that allows you to adjust the viewing angle, a trackpad, and a USB port.
4. 4. Does the Apple wireless keyboard come with USB ports?
Bluetooth wireless technology allows the Apple Wireless Keyboard to communicate with other devices. There are no USB ports or connectors.
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Is this a drag anyone else has experienced?
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I just purchased my first Arduino R3 UNO starter kit and installed IDE 1.8.5 onto my MacBook Pro. I am excited to learn and eager to get started.
However, once I plug the Arduino into my USB ports on my Mac, the Arduino doesn’t power up, and that I get the message “USB Accessories Disabled, Unplug the accessory using an excessive amount of power to re-enable USB devices.”
I tried to plug it into my USB ports but got an identical message and no power to Arduino. My USB ports are free from any other devices. I have tried restarting but got the same message. Once I unplug my Arduino, other USB devices can be plugged into the ports and they work perfectly.
The Arduino was also connected to the barrel plug with the 9volt wall adapter. It powered up. But, I still get an excessive power error if I plug the USB in at the same time.
Here are my computer stats:
MacBook Pro Retina Mid 2012 2.7 GHz Intel Core i7 Memory 16 GB 1600 MHz DDR3 Mac OS 10.13.1 Sierra Nevada
According to some sources, my USB ports produce 500ma each port. Is that not enough power for the Arduino?
Has anyone else had this problem and found out a solution?
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