However the story doesn't stop there. You can not post a blank message. If it has been greater than 5 days since you have had the problems, you will need to select the “Show restore points older than 5 days” check box. YOU CAN HELP: It appears Apple may not know about the problem.
If it's a chronic problem then you need a new logic board. "The SMC should not need to be reset unless you change a fundamental aspect of your hardware (add ram, I can also confirm that after months of not having the LeapMotion driver installed, my favorite Anker 3.0 USB has been working like a champ. I have a problem regarding with my mouse (Razer Krait 2013 edition). Step 4 – Enter “sfc /scannow” in the command prompt window followed by pressing the “Enter” key. http://osxdaily.com/2015/08/09/mac-usb-ports-not-working-fix/
After removing a bunch of stuff I did additional testing and confirmation to figure out exactly what was causing the problem, and sure enough, it was the Leap Motion runtime! … I am open to other clues... Step 6 – Take a working USB device and test each USB port on the computer. USBs are out for the third time now and I've just bought this MacBook Pro a few months ago.
Reply Maddy G says: September 11, 2016 at 3:22 pm This worked perfectly for my MacBook Air!! This update addresses an issue that may prevent a USB keyboard from being recognized after the system wakes from sleep." The above is taken from the Apple Support website. If we look at the "about this Mac" and the "more info" and in the USB device tree section, we see more detailed info such as "Current Available & Current Required". Macbook Pro Not Recognizing Usb So for instance if i plug a usb 3hd works like a charm but an apple mouse won't.
No drivers needed on any operating system, so there's only a few things that can go wrong. To isolate it down: * Can you double-check the USB connection between the hub and the Usb Not Recognized Mac I panicked for about two hours after my USB port stopped reading my devices. The light did change color on the power adapter. https://discussions.apple.com/thread/2716799?start=0&tstart=0 If you have many devices connected to your Mac: Disconnect all USB devices except the device you’re testing, an Apple keyboard, and an Apple mouse.
IAN share Share on Twitter Share on Facebook Email Link Like + Quote Reply broadcast, Jul 17, 2012 broadcast thread starter macrumors member Joined: Apr 21, 2010 #6 imorton said: Macbook Pro Usb Ports Not Working Fix So, if you ever encounter total USB failure on a Mac for no apparent reason, try the SMC reset, it will probably work for you too. We are reddit's community of Mac users, enthusiasts, and experts. Step 2 – Right click the “Command Prompt” and choose the “Run as Administrator” menu option.
Reply Martin says: September 29, 2015 at 8:39 pm I have a Mid 2011 Mac Mini and only 3 of my 4 USB ports work at a time. here He has been published in the "Celebration of Young Poets" and has an associate degree in communication and media arts from Dutchess Community College, and a bachelor's degree in broadcasting and Usb Port Not Working Macbook Pro Fixing HP Mopier, Collation, and Storage problems (WIN 7) Java 8 on OS X Yosemite Archives Archives Select Month March 2016 (2) December 2015 (1) October 2015 (1) November 2014 (1) Reset Usb Ports Mac Add Image I'm e.g.
I saw no light blinking or changing color on the power adapter, but I held all the buttons down for about 60 seconds, restarted, and it worked! Any suggestions? Of course, I'm an experienced Mac user so I knew this this, but given that many other Mac users out there are less familiar, this type of troubleshooting is always worth Uninstalling the driver (according to their instructions at https://support.leapmotion.com/entries/39493988-Uninstalling-the-Leap-Motion-software-on-Mac-OSX) caused the device to spring back to life without even a reboot required. Imac Usb Ports Not Working
If you have recently installed a new application on the computer, consider uninstalling the program to see if there is an incompatibility with the USB device. lol Ricky Liona what OS are u using…? Related Posts USB Pinout The Universal Serial Bus (USB) interface connects peripherals in a variety of ways. Reply lovemyhak says: June 6, 2016 at 12:14 pm Hi Colorado dude w.., Are you using clover ?
Once launched, select the “Contents” column then the “USB” menu option beneath the “Hardware” menu header. Mac Won't Recognize Flash Drive Is the hub or drive broken? I've had hard drives disconnect sporadically, low-power devices that are plugged in flicker a hub's lights with no rhyme or reason, etc.
Step 2 – Expand the “Universal Serial Bus Controllers” menu node. Search for: ReferenceSoftware Tutorials Unit Conversion Practice Tests Web Tools Site Index Audio-Video Databases Electronics File Compression File Conversion Gaming Graphics Hardware Internet IT Management Macintosh Microsoft Windows Mobile Devices Networking Reply Leave a Reply Click here to cancel reply. Mac Not Recognizing Usb Device Choose...
He took it apart, did diagnostic tests, saw nothing wrong, tried it on his computer, it worked fine, and handed it back to me fixed as just a mystery. I truly believe that both USB ports on the Macbook Pro are slightly different in regards to power available & required. Sometimes, there can be issues with the wall socket or power strip being used, so also change the source of power that the cord is using for the test. Das I used USB block software to restrict unauthorized pen-drive access. After few days I uninstalled it. After uninstalling my USB ports are not working, it is not recognized. And few
Here's how to fix it. Seems such an odd issue to have. I have a webcam and USB drive connected through the hub and I can't see either on the laptop. Thanks for double-checking these things and providing whatever background you can on what you've tried.
Step 3 – Determine if the USB device that is throwing the error is new or one that you have had for a while which has stopped working. Reply blanco says: December 9, 2015 at 12:15 pm SMC reset is not voodoo, the System Management Controller is firmware that controls much of the hardware on the device (USB, power, Reply harry says: January 19, 2016 at 12:36 pm So, this worked for me and my USB started working again, what a relief! Reply Leave a Reply Cancel reply Your email address will not be published.
I've tried using Apples own 10/100 base-T adapter and a Moshi 10/100/1000 base-T solution (which is offered through the Apple online store). Then I plugged in my flash drive into the hub (without the power adapter) and I got a message that there was not enough power and to plug in the power Reply Eric says: August 10, 2015 at 7:35 am Not to downplay this "fix", but I was really hoping for a bit more of an explanation as to *why* the SMC What I'd really like is to be able to re-acquire use of my USB ports without having to reboot the laptop.
How-To Videos Disable Autoplay Settings In Windows 10 View more Macworld videos » Fix Errors Using Windows System File Check If the USB device has previously worked on your computer, there is a possibility that a configuration file has become corrupted. Step 2 – Restart the computer. While an SMC reset does usually correct the problem, that solution is a patch at best.
So if your problem isn't fixed by this like mine was, try that. If you discover this is the case on your computer, you will have to deconflict usage of the two devices and seek software fix(es) from the respective device manufacturer(s).
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