If it's already connected, leave as is. I did notice that the USBs are sending power out to the connected devices but it never shows an icon on the desktop for connected devices as usual. 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. The article is called Fix MacBook, Mac Pro USB Ports Not Working Problemand is located athttp://innov8tiv.com/fix-macbook-mac-pro-usb-ports-not-working-problem/.CaptchaSubmit fixMacmacbookusbChina’s Dialect Mandarin To Be Taught And Examined In Public South African SchoolsInno8tiv Talks To Source
But the SMC reset alone just fixed the problem. Cancel Add your answer Diego will be eternally grateful. Turn the computer back on. So for instance if i plug a usb 3hd works like a charm but an apple mouse won't. additional hints
I did a force shutdown and then when it rebooted, it won;t recognize all usb 2.0….it can't even charge my iPhone when plugged to the right side or even a pen A reboot is a simple way of solving common hardware problems. Specifically the +-5 Volts. Once you reset the SMC and reboot the computer, USB hardware functions are reset and they start working again.
Will you please guide me? 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? Reply Sarah Lewis says: January 4, 2016 at 7:22 am Well I'll be goddamn damned, this actually worked. One Usb Port Not Working Macbook Pro Aug 3, 2012 8:47 AM Helpful (0) Reply options Link to this post by tjk, tjk Aug 3, 2012 10:41 PM in response to Visionscaper Level 7 (24,624 points) Mac OS
NOTE:There are two different MacBooks. Images: OSXDaily(Visited 756 times, 1 visits today)330Share on Pinterest000Share with your friendsYour NameYour EmailRecipient EmailEnter a MessageI read this article and found it very interesting, thought it might be Check for missing software: Make sure you installed the latest software for your device. https://support.apple.com/kb/ht1151 Restart your Mac: Choose Apple menu > Restart.
Its beginning to look like a design feature. Usb Not Recognized Mac You can not post a blank message. Reply Kim says: April 18, 2016 at 7:20 am Thanks. But since we're talking about OS X, can't wait for OS X 10.12.1, right?Anyone?
Reply Gordon Shephard says: December 9, 2015 at 12:11 pm The whole "Reset the SMC" fix seems like so much cargo cult voodoo to me. Step 01. Macbook Pro Not Recognizing Usb 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. Imac Usb Ports Not Working Reply pntbrother on November 21, 2014 at 1:17 pm Glad to hear that 🙂 Reply roo on December 8, 2014 at 3:08 pm Guys - are you kidding me! 🙂 This
Before we get to fixing the MacBook, keep in mind that things like flash drives, external hard drives, mice, keyboards and other peripherals may have broken and are causing the problem, this contact form Reply Suzy on August 5, 2015 at 7:35 pm This worked brilliantly! Does the printer show up under Printer & Scanners in your System Preference settings and can you print a test page? 07/28/2014 by Dan Hi Scott Dingle, thank you for your Does this happen to anyone regularly? Reset Usb Ports Mac
Subscribe to Our Newsletter © 2014-2015 Innov8tiv. Hold the "Command-Option-P-R" keys together before the gray screen appears until you hear the startup sound for the second time. Your advice saved the day. http://admitcore.net/not-working/usb-drives-mac-not-working.html Connect the power adapter to the Mac.
You can check this by trying multiple USBs. Usb Devices Disabled Mac Reply Paul says: April 12, 2016 at 3:48 pm Renae, this is very helpful information, thanks for reporting exactly what worked for you to fix your MacBook Pro USB ports when It doesn't do it with other iPhone 4 or iPod touch.
May 15, 2012 12:27 PM Helpful (1) Reply options Link to this post by bassgirl, bassgirl May 23, 2012 11:04 PM in response to LCollingridge Level 1 (4 points) iTunes May Step 06. Visit P&T Troubleshooting Forum to fix! Mac Won't Recognize Flash Drive Doing a PRAM reset didn't work for me, but the SMC reset worked - USB port#2 back in working order!
Click the Apple menu and click "Shutdown" to turn it off completely. Reply vangelis says: November 30, 2015 at 3:18 pm My problem is this. You can learn how to reset the SMC on all Macs here in our detailed tutorial. Check This Out I have the latest system software and it still hasn't resolved the issue.
It did not respond to any attached devices thereafter. Step 03. Make sure that the device is connected directly to the computer, and that any hubs or extension cables are disconnected. I loaded it onto my Mini recently as the USB ports weren’t working reliably.
Reply Nancy says: March 18, 2016 at 11:05 pm Wow-this totally worked!! 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 In mid 2012 15″ macbook pro the both usb ports recognise any usb 3 device but not 2! Press the "Command-Option-Esc" buttons to shut down applications that aren't responding.
Because I have had a Externally powered hub go bad and the only way to isolate it was to test all the USB ports and devices individually first. SMC stands for Resetting the System Management Controller and if there is a collision on the system management controller, your MacBook might not be worked properly. 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
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