USB Accessories Disabled in MAC

 

If your Mac is displaying a message that says "USB Accessories Disabled" or a similar warning, it usually indicates that there is an issue with the power supply to your USB devices. Here are some steps you can take to resolve this issue:

  1. Disconnect and Reconnect USB Devices:

    • Unplug all USB devices from your Mac.
    • Wait for a few moments and then reconnect them one by one.
    • If a specific device is causing the issue, it should become apparent during this process.

  2. Use a Powered USB Hub:

    • Some USB devices require more power than the Mac’s USB ports can provide, especially if multiple devices are connected.
    • Using a powered USB hub (one that has its own power source) can help ensure that all devices get sufficient power.

  3. Reset the System Management Controller (SMC):

    • The SMC controls power-related functions on your Mac. Resetting it can sometimes resolve USB power issues.
    • For Intel-based Macs:
      1. Shut down your Mac.
      2. Press and hold the power button for 10 seconds, then release.
      3. Wait a few seconds and then turn your Mac back on.
    • Alternatively, for desktop Macs (iMac, Mac mini, Mac Pro):
      1. Shut down your Mac and unplug the power cord.
      2. Wait 15 seconds, then plug the power cord back in.
      3. Wait 5 seconds and then turn your Mac back on.
    • For M1/M2-based Macs:
      • Shut down your Mac and wait for 10 seconds, then turn it back on. The SMC is reset automatically during this process.

  4. Check for Software Updates:

    • Make sure your macOS is up to date. Sometimes, software updates include fixes for hardware-related issues.
    • Go to System Preferences > Software Update and install any available updates.

  5. Inspect the USB Ports:

    • Check if there is any debris or damage in the USB ports. Clean them carefully if needed.

  6. Test with Another Mac:

    • If possible, connect the USB devices to another Mac to see if the issue persists. This can help determine if the problem is with the devices or your Mac.

  7. Check System Report:

    • Go to Apple Menu > About This Mac > System Report.
    • Under the "Hardware" section, click on "USB" and check if the devices are listed there. This can give you more insight into the problem.

  8. Contact Apple Support:

    • If none of the above steps resolve the issue, it might be a hardware problem. Contact Apple Support or visit an Apple Store for further assistance.

These steps should help you identify and resolve the issue with USB accessories being disabled on your Mac.USB Accessories Disabled in MAC If you see the error message "USB Devices Disabled" on your Mac, you can try these steps to fix it:

Restart your Mac: Restarting your Mac from the Apple menu can help. Check your connections: Make sure the USB device is turned on and its cables are properly connected. If your Mac has multiple USB ports, try connecting the device to a different port. If your device is connected to a USB or Thunderbolt hub, try connecting it directly to your Mac. If your hub is self-powered, make sure it's connected to an AC adapter.

Check your power supply: External devices like keyboards, cameras, and drives often require a specific amount of power. If you have too many USB devices connected at once, or if your power supply is insufficient, you might see this error.

Check your ports: Make sure your USB-C ports are clean and free of debris. Try blowing compressed air into them if necessary. Check for updates: Software or firmware updates might be available. Allow accessories to connect: You can allow accessories to connect automatically when your Mac is unlocked, or always, without manual approval. To do this, go to Apple menu > System Settings > Privacy & Security, then click the pop-up menu next to Allow accessories to connect.


If you see the "USB Devices Disabled" error on your Mac, here are the steps you can take to resolve it:

Restart Your Mac:

  • Go to the Apple menu and select Restart. Restarting your Mac can often resolve temporary issues.
Check Your Connections:
    • Ensure that the USB device is turned on and that its cables are securely connected.
    • Try connecting the device to a different USB port on your Mac.
    • If the device is connected to a USB or Thunderbolt hub, try connecting it directly to your Mac. If your hub is self-powered, make sure it’s connected to an AC adapter.

  2. Check Your Power Supply:

    • External devices like keyboards, cameras, and drives often require a specific amount of power.
    • You might see this error if you have too many USB devices connected at once, or if your power supply is insufficient.
    • Consider using a powered USB hub to supply sufficient power to all connected devices.

  3. Check Your Ports:

    • Make sure your USB-C ports are clean and free of debris. Try blowing compressed air into them if necessary.

  4. Check for Updates:

    • Software or firmware updates might be available that can resolve USB issues.
    • Go to System Preferences > Software Update and install any available updates.

  5. Allow Accessories to Connect:

    • You can set your Mac to allow accessories to connect automatically when it’s unlocked, or always, without manual approval.
    • Go to Apple menu > System Settings > Privacy & Security, then click the pop-up menu next to Allow accessories to connect and choose your preferred setting.

By following these steps, you should be able to resolve the "USB Devices Disabled" error and ensure that your USB devices work properly with your Mac.

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