How to fix error message on Mac “USB plugins disabled”.

Some Mac users may see a “USB plug-in disabled” error message when using their computer. This is often the case with a USB-C hub that connects many devices, but it can also happen when a Mac connects an external USB drive, drive, camera, keyboard, controller, USB-C power cord, or other device to a computer, and then USB devices are no longer usable or available.

The full text of the error message is “Disabled USB accessory: Turn off accessories using too much power to re-enable USB devices.”, which basically informs you that the device is trying to draw too much power, and when this happens USB becomes disabled. The error message also offers a possible cure for the error message.

If you encounter a “USB accessory disabled” error message, try the troubleshooting tips below to resolve the issue.

Disconnect and reconnect USB devices

  • Disconnect all USB devices from the Mac, then plug them back in and see if the problem goes away.
  • If you are not sure which device is causing the problem, try disconnecting the USB devices one at a time to see if the error message disappears.
  • Give priority to all USB-C devices that consume the most power, for example, trying to use an external GPU via a USB-C hub can often cause a problem.

USB hub troubleshooting

  • If the USB hub is powered, make sure it is directly connected to the power supply.
  • If you’re using a USB-C hub, try plugging it into a different port on your Mac
  • Try disconnecting the device that consumes the most power from the USB-C hub and instead connect that device directly to your computer instead of using one of the built-in USB ports on your Mac.
  • Try another USB-C hub, the Satechi USB-C hub is a popular choice.

Various troubleshooting tips

  • Connect the device directly to another USB port on the Mac
  • Restart the Mac with the connected devices
  • If you’re having screen problems on your M1 Mac at the same time, try connecting the screen directly to a Mac USB port and using other devices via a USB hub (if applicable)

If you have this error on an Intel Mac, sometimes resetting the SMC can also solve USB problems.

If you have a “USB Disabled Disabled” error on an Apple Silicon Mac with an M-Series chip, there is no reset SMC, so simply restarting and using the above troubleshooting steps is enough to resolve the issue. However, you can force the M1 Mac to restart if necessary.

If you still have power issues with USB ports and devices that don’t work on your Mac, it’s always possible that there’s a hardware issue that can only be resolved through official Apple support, so if the above tricks failed to contact Apple support directly, the next step is reasonable.

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Naveen Kumar

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