I finally went to Apple to get the latest MAC OS update - installed it and restarted and voila!!! Enter your email address below: Related articles: Change MAMP to Default Apache and MySQL portsHow to Chat on AIM from Behind a Firewall with iChatSee What Files & Ports an Application Once you reset the SMC and reboot the computer, USB hardware functions are reset and they start working again. Do not give advice if you don't know what you are talking about. navigate here
bla, bla, bla. Thank you! Let me know when you’ve finished that cup of STFU!! Turn on your MacBook while holding the keys (Option + Command (⌘) + P + R). http://osxdaily.com/2015/08/09/mac-usb-ports-not-working-fix/
Reply Olivia says: June 29, 2016 at 1:14 pm I tried resetting the SMC on my MacBook Pro, but the light didn't change colour or blink while attempting this. I've had the problem of USB ports stopping working (no USB devices recognized with system_profiler SPUSBDataType ) on a couple MacBook Airs over the last three years. It doesn't do it with other iPhone 4 or iPod touch.
One of my USB ports stopped working after I upgraded to Mac OS X 10.8 Mountain Lion (USB device was not detected when plugging it into this port). Apparently it resets the NVRAM (Non-Volatile RAM), not sure what that has to do with USB ports, but it worked. Yes No Thanks - please tell us how to help you better. Usb Not Recognized Mac Resetting may help with getting USB functionality back. 3 Reset the SMC SMC, or the System Management Controller, is a system on a chip within Intel-based Macs that plays a role
Check for Updates You must check for the updates, because lack of updated firmware and software is the cause of so many hardware related issues in Mac. Macbook Pro Not Recognizing Usb Mar 5, 2013 12:42 PM Helpful (0) Reply options Link to this post by OGELTHORPE, OGELTHORPE Mar 5, 2013 8:49 PM in response to surtalev Level 9 (53,023 points) Mac OS The first thing you should do is reset the Mac SMC, a simple process which is slightly different depending on the Mac hardware. https://discussions.apple.com/thread/3939949?tstart=0 Rebooting the Mac resets certain hardware conditions, which may lead to a solution to USB port issues. 2 Reset the PRAM PRAM, or parameter random-access memory, is a part of the
I've tried everything. One Usb Port Not Working Macbook Pro If it doesn't work after an SMC reset, it may be actually failing or due to another issue, but you'd need to run the Apple Hardware Test diagnostics to determine that. The thing about the Reset the SMC procedure, is that it requires a device reboot, which also 100% of the time fixes the issue - no SMC refresh required. Reply Birther says: August 9, 2015 at 6:53 pm Just reconnect your USB cable from the hard drive to your Mac, it has nothing to do with OS X Yosemite or
Did PRAM and SMC reset, nothing solved this. The Solution to No-Cause Random USB Failure on a Mac: Resetting SMC So, you're confident a USB port is the problem and not the device itself? Macbook Pro Usb Ports Not Working Fix Copyright © 2016 Apple Inc. Imac Usb Ports Not Working Reply Diane says: March 1, 2016 at 1:38 am This worked like a charm for me, thanks.
I have the latest system software and it still hasn't resolved the issue. check over here Your USB controller is screwed up. Reply DJacks says: August 12, 2015 at 11:42 am Anyone else having issues with usb to ethernet? My seemingly non-working USB port now recognizes my devices. Reset Usb Ports Mac
Resetting the SMC should only be attempted after Steps 1 and 2. But the SMC reset alone just fixed the problem. My macbook pro retina battery was a bit strange but now it's working great! http://itenlightenment.com/usb-port/mac-os-x-usb-ports-not-working.html I also lose the Facetime camera on occasion (no reason).
Press Shift+ Control+ Option+ Power for some time - maybe for 1-2 seconds; now when the LED display on the power adapter starts blinking, it means that the SMC is reset Usb Devices Disabled Mac If the device appears but does not work, review the device’s documentation for further troubleshooting steps. Reply vangelis says: November 30, 2015 at 3:18 pm My problem is this.
Reply saarah on February 22, 2015 at 2:35 pm Thank you for this solution!! I've got a server setup where I needed a second ethernet port setup that I've configured through USB-to-Ethernet. Reply Suzy on August 5, 2015 at 7:35 pm This worked brilliantly! Mac Not Recognizing Usb Device Restart your Mac: Choose Apple menu > Restart.
That doesn't sound anything like they suddenly don't want to make products that are compatible with 10.11 because they are not trying. When you find the device causing the problem, review its documentation for further troubleshooting steps. But since we're talking about OS X, can't wait for OS X 10.12.1, right?Anyone? The card reader doesn't show up.
First and foremost, keep in mind that sometimes a USB device itself can fail, which may have nothing to do with the Mac itself. roo 🙂 Reply pntbrother on December 9, 2014 at 1:21 am Happy to that you solved the problem! 🙂 Reply Mitchell on December 18, 2014 at 3:13 pm Absolutely awesome!!!! Here's how, the USB ports use a filter (inductor) to filter electronic pulses on a data line to the PCH these pulse move at whatever the stated data rate, ie. 3Gb https://support.apple.com/en-us/HT201295 Reply Average Joe says: August 12, 2015 at 4:56 pm Stop using quotes unnecessarily.
If the device is connected to a USB hub: Make sure the device and the hub are the same speed. While there may be several reasons (or no reason) for USB ports ceasing to function with no cause, the good news is that it's typically a very easy fix. So while this far from conclusively points to El Cap being the root of USB issues it does appear these developers are trying to sort things out and not able to. Press and hold the power button for 5 seconds.
Reproduction without explicit permission is prohibited. At first I thought one USB port was permanently broken so I only used one of them; today the second one started to fail (my phone would on and off charge Step 02. Home Mac OS X iPhone iPad Tips & Tricks Jailbreak News iOS Mac USB Ports Stopped Working?
Power button is not on my keyboard, I pushed my "on" button along with Shift+Control+Option, had to release the power button but held the other 3 until power light switched off