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USB accessories disabled unplug the accessory using too much power to re-enable usb devices

USB accessories disabled unplug the accessory using too much power to re-enable usb devices


Only one port is working, second port receives this message

How can i enable second port


thanks for your time

MacBook Pro 13", macOS 10.13

Posted on May 21, 2019 8:44 AM

Reply
3 replies

May 21, 2019 9:45 AM in response to sreenigaddam

First, get an A/C powered USB Hub, it'll solve many issues.


If your Firewire or USB isn't recognizing any device.  A solution which has worked for some whose hard drive became invisible in 10.4 was simply to follow these four steps to reset the Firewire/USB bus:

1. Shut the machine down.

2. UNPLUG the power lead to the computer and any firewire/USB drive or devices.

3. leave it for 10 minutes.

4. Connect back up and reboot. 

http://www.macmaps.com/firewirebug2.html

USB accessories disabled unplug the accessory using too much power to re-enable usb devices

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