USB port not responding

The second USB port on my iBook is not responding to my Flashdrive. However, the other USB port is. Any suggestions for fixing or figuring out what the problem is?
Thanks.

Help. I too am having problems with my USB ports on a brand new 2.16ghz 15" Macbook Pro with 2GB Memory. More specifically, for my business, I use Vectorworks 12, a macintosh CAD program with a serial dongle that enables me to simply open and run the program. Well, the serial dongle is not lighting up as it should whwn plugging it into my MacBook Pro. My wife has a 15" PowerBook and G4 17" iMac, in which the dongle does NOT light up either! When I plug the dongle into my Dual 2 ghz "G5" Tower it lights up perfectly as it historically did! I plugged in a thumb drive that works in both my laptop and G5 tower. So why all of a sudden does the Vectorworks Serial Dongle become unrecognized by both USB ports in my MacBook Pro when Thumb drives, iPods, USB mouse etc. all work? The serial dongle should have at least lit up in my wifes 15" PowerBook or G4 iMac if the problem was isolated to my MacBook right? Something is messed up from the last firmware update maybe? So, what the heck happened! It was working a few days ago!? I need to use this serial dongle in my MacBook Pro but why is it, of all these computers mentioned, only being recognized on the G5? Please Help!

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Keyboard, Trackpad, Mouse and USB ports - Not Responding

Hello,
Here is my problem. Today when I started my MBP, there was no keyboard, no mouse(USB), no trackpad, no USB ports. I restarted it several times, but nothing changes. If not everything looks fine My desktop is availble, also the backlight on the keyboard works fine, but I can do nothing, my MBP is unusable. Only the power button works fine. I tried to connect an external USB keybord without success, the same with usb drives. I'm running 10.5.6 on MBP, Core Duo 1.83 GHz, 2 GB RAM.
I found many discussions here about the same problem( http://discussions.apple.com/thread.jspa?threadID=1568210&tstart=0 ), I tried a restart without battery etc.... Nothing helps.
Please help, my warranty passed away
Message was edited by: gvassilev

As this is literally a brand new imac, I would hope that the ports aren't giving up as I am sure they are very expensive to replace.
If it is that new you should be under applecare so you could take it your nearest apple store and let them deal with it (or call apple first if you want).
Besides the keyboard do you have anything else connected to the usb ports that may be drawing off too much usb power? In which case you may need a powered usb hub.

USB port not responding on iMac

First - On my iMac (running OS X 10.7.5), I periodically will lose the functionality of 1 of my 3 USB ports on the back of the Mac.
The only thing that seems to work is to restart the iMac. But, this is only a work around. Why would the USB just randomly fail?
Second - On a related note, I do have a USB expansion hub that ONLY works with an external hard drive. Whenever I try to use it for my iPhone, iPod, Neat scanner, or whatever, I get the pop-up window stating that there is not enough power for device that was plugged in and that I must use the USB on the back (which may or may not work in the first place). Any suggestions on a product that WOULD work as a successful USB expansion? Thank you.

1. The port overload protection is tripping off because it was overloaded.
2. Get a self-powered USB Hub instead of using that bus-powered Hub.
Below are a couple examples of Belkin self-powered Hubs
Hi-Speed USB 2.0 4-Port Hub | Other Hubs | Hubs | Macbook & PC | Products | Belkin
Amazon.com: Belkin Hi-Speed USB 2.0 7-Port Hub F5U237-APL-S: Electronics

2010 i5 MBP USB Ports Not The Same? Griffin iMic Issue

I have a 2010 15" i5 MBP. I got one of the white iMics and it works fine on the port thats closest to the screen. However, when I plug it in to the port that's closer to the SD slot, it doesn't work. Under the audio settings screen, I see the iMic under Input, and the slider is to the right, but the VU meter doesn't register anything. However, when it's in the USB port by the power adapter, it works as it should.
I have read that certain model MBPs have USB ports that are not the same, and some people have problems with programs like Serato when it's plugged into the front port. Traktor and Serato have even mentioned that on the MBP there is one "good" port and one "bad" port.
Curious if anyone else noticed this. Again, it seems to only affect 2010 i5 MBPs.

Hi WebBrowser2,
As I understand your query its not a single doubt you are having at all, actually it’s a bunch of multiple doubt you are carrying here in your mind allied to Mac Book Pro (USB Ports are not working). There might be various reasons behind- not working of USB ports in Mac Book Pro, as you already had searched out various ways to fix all your issues. A few months ago, I faced the same issue as my USB port was suddenly stopped to respond, then I also tried to find various ways to get rid of this issue, and I found an informative blog link which has fixed this issue and make me tension free.
For more information visit at- http://www.olmtopsts.com/blogs/when-macbook-pro-usb-ports-not-working.html
And I am hoping- it will assist you in the same way as it assists me.

Split x2 problem with USB ports not working

My computer is somewhat new and this problem has been happening since I first got it. I couldn't find anything about this problem here or elsewhere online.
When I plug anything into either USB port (I've tried my phone and an external harddrive) the computer like sort of recognizes it on and off. When I plug in my phone the computer beeps at random every several seconds and doesn't recognize it. The external hard drive was sort of recognized but only on and off and I couldn't move things from it to my computer because it wouldn't stay connected long enough. It's literally like every 2-3 seconds it recognizes the USB thing, changes it's mind and then recognizes it again, etc. forever.
I haven't had a chance to test the SD card slot or the HDMI port yet.
Sometimes the mouse freezes also, I'm not sure if this is the same problem (related to connection between the tablet and the keyboard parts) or if these are separate problems. It seems to be happening less often and goes away if I wait for a moment. Still annoying but the USB ports not functioning is a more urgent issue.
I need help, is there a way to fix this or is something faulty with my computer?

Hi Purple24,
I understand you are having issues with USB on your HP SplitX2. Here is a document on general troubleshooting.
http://h10025.www1.hp.com/ewfrf/wc/document?cc=us&dlc=en&docname=c03327635
I would be happy to assist if needed. Please let me know what is your model number? Here is a link that will help you find that out.
http://h10025.www1.hp.com/ewfrf/wc/document?docname=c00033108
Please let me know.
Thanks.
Please click “Accept as Solution ” if you feel my post solved your issue, it will help others find the solution.
Click the “Kudos, Thumbs Up" on the bottom to say “Thanks” for helping!

MSI GAMING 5 - ALL USB ports not working

hello
how are you every one
i have problem with rear usb port i can use it in safe mod and bios only but it does't work when the operition system start i try to slove the problem i updated bios i have other pc and same specification and it's work without any problem but with this mother borad rear USB ports not work also the USB ports on the case ALL USB PORTS NOT WORKING
Mouse and keyborad work in bios but if the system run don't work ! and trun off
and all usb devices
in safe mod work
rellay i don't know where is the problem !
CPU : Intel Core i5-4690K
M.B : MSI Z97 GAMING 5
RAM : G.Skill Ripjaws X 8GB DDR3 Kit
GPU : Gigabyte GeForce GTX 970 G1 GAMING
SSD:Corsair force LX 256 GB
HARD: Seagate Barracuda 1 T.B 7200 RPM
CPU COOLER : Cooler Master Hyper 212 Evo
PSU : Cooler Master GM-Series 750 watt
CASE : NZXT Phantom 410
Thank you

Quote from: Nichrome on 28-January-15, 00:18:47
Hi,
What about if you try to install drivers from your product's page?
http://uk.msi.com/support/mb/Z97-GAMING-5.html#down-driver
And when exactly it starts to fail to work? Did you try to have OS just installed, restart it and see if it works then? Are you able to determine which driver installation causes USBs to stop working?
thank you
i just remove USB3 controller driver and work
thank you all :D

USB Port not recognising (MBP Late 2011)

USB Port not recognising iPhone or External Hard Drives. But working with Flash Drives!! (Both not working) (MBP Late 2011)
MBP Late 2011
OSX 10.8.3
2.2GHz Intel Core i7
8GB 1333MHz DDR3

Yes, Box is checked. I've used many hard drives on my laptop both through firewire and USB I own about 4 hard drives through all different sizes and none of them work (started to happen about a week ago)
iPhone:
No nothing happens when my iPhone is plugged in. No charging, not syncing, iTunes doesn't recongise anything is there and my dropbox account which downloads the photos doesn't see its there, iPhoto and Aperture don't see my phone.
However My Girlfriend has a Macbook (white 2009) I plug everything into her laptop and everything works, chargers and reads. so its not the perferials or cables.
I know how to use Macs and PC very well and I have tried resetting and turning it back on whilst holding
Command>Option>P+R
and un plugged the charger shut it down, plug it back in and turn it on again. but nothing works...

Touchsmart TX-2 fingerprint scanner and USB ports not working

Hi everyone,
Please forgive me if this is in the wrong spot.
Just sent my laptop (Touchsmart TX-2 1015au) off for a warranty fix - told them the USB ports weren't working on Windows 7, 64 bit. It came back wiped, running on Vista 32 bit and.....with the USB ports not working.
I figured I'd try to get it working because I need my laptop for uni and can't send it back right now. So I clean installed Windows 7, 64 bit again and its still not working. Did the standard open device manager and uninstall everything under the usb tab. All that has resulted in is causing the fingerprint scanner to stop working (being told that it is not connected) and still no working USB ports.
All advice really welcome and very much appreciated!
Thanks in advance

Hi:
Should be no problem to get W7 32 bit to work on that model.
Just use all of the drivers and software from the HP Probook 450 G0 on your model except the Audio, BIOS and firmware files.
Your model uses the Intel HD graphics driver only.
The first driver you have to install is the Intel chipset installation utility and then reboot.
http://h20565.www2.hp.com/portal/site/hpsc/public/psi/swdHome/?cc=us&lang=en&sp4ts.oid=5359407&ac.ad...
Audio: Accept the agreement. Download and install the first driver on the list.
http://www.realtek.com.tw/downloads/downloadsView.aspx?Langid=1&PNid=14&PFid=24&Level=4&Conn=3&DownT...
If for some reason, the Intel HD graphics driver from that model does not work, then use this one...
https://downloadcenter.intel.com/Detail_Desc.aspx?DwnldID=23713

My usb port not work and hot usb port aria please help me

my usb port not work and hot usb port aria please help me

Hi
Please find the link givenbelow might help you to fix your issue.
USB Device Troubleshooting
Fix Windows 7 “USB Device Not Recognized” Error
Let us know how it goes!
"I work for HP."
****Click the (purple thumbs up icon in the lower right corner of a post) to say thanks****
****Please mark Accept As Solution if it solves your problem****
Regards
Manjunath

Usb port not working in Mavericks

Now that I've upgraded to Mavericks, my USB ports don't seem to be working, ie I cannot connect my devices (iPhone 4s and iPad 3) to iTunes. Any help out there?

Hi all!, I'm experiencing the same problem here, but resetting both SMC and PRA/NVRAM had no effect: USB is still non working. It's a fresh installation of 10.9.5 on a brand new HDD (no other HDDs attached), and I have no BT to attach another mouse to, so I can't even operate the machine. The system responds to other inputs (the clock ticks on, and if I press the power button it asks me if I want to shut down), but will not see any USB device (keyboard, mouse, ext. volumes... nothing).
Note that USB ports are FULLY functional during boot (e.g. during the boot volume select screen) and under 10.6.8 (that sits in another HDD currently detached). The only quirk is that the machine does not want to BOOT from a USB drive (it lets me select the drive, but it will not boot from it eventually).
Where should I look for the problem and/or the solution?
Any further idea apart from the resets?
Thanks!

Firewire ports not responding to external drives.

I have a LaCie 250 gig and it was working fine until I plugged a power book into one of the firewire ports. Not only did my G4 not recognize the power book, it also stopped recognizing my external drive.
The .mac site said to unplug everything and restart the computer to reset the firewire ports. Which I did and nothing changed. Figured it was a lost cause so I used the USB instead.
Then, one day, I tried it again to see what would happen and it worked. The firewire went back to normal and everything was fine.
The other day, I plugged my Canon XL2 into the firewire port and it shut everything down again. So, now I'm without firewire and back to USB for my external drive.
The firewire DOES turn on the drive, it just doesn't recognize that there's anything plugged in.
Thoughts?

1. Shut-down your Mac, and unplug the power cord
2. Turn the power off on your external FireWire devices
3. Unplug the FireWire devices from the Mac
4. Wait for 5 min.
5. Plug the power cord to your Mac only
6. For PPC Macs: Restart the Mac while holding the Option-Apple-O-F, and keep holding until you get the ">" prompt, then release the keys
7. At the ">" prompt type:
      reset-nvram and hit the Return key
      set-defaults and hit the Return key
      reset-all and hit the Return key
the last command will restart your mac
8. Shut down your Mac
9. Connect all your FireWire devices to the Mac and turn them on
10. Restart your Mac.
All your FireWire devices should reapear, if not repeat the procedure
How to avoid the issue :
The only really proven way to avoid burning up a FireWire port is to connect all devices and to turn them on PRIOR turning on the Mac. Likely, one must unplug them and turn them off AFTER the Mac has been turned off. If you need to connect another device, then you're on for a shutdown of your machine...  It's a tad annoying but it guarantees that the FW ports won't be damaged.  Be careful when using self powered devices such as webcams, iPods, hard drives or hubs, as they can destroy the port pretty easily. Another thing is to avoid daisy-chaining hard drives.
When the FW port doesn't respond anymore :
In this case, peripherals won't be mounted upon plugging, and won't be displayed in Apple's System Profiler. The self powered devices will still be fed by the port, but won't respond either.  It happens that the PHY just hangs after a surge or a random problem. Once hung, the port will not respond any longer, it is possible to reset the component by going through the following steps :
1° boot the PPC mac in Open Firmware by holding [ Apple key - Option - O - F ] after the startup chime.  2° you'll get to a command prompt. the keyboard mapping will be QWERTY, so pay attention when you type the following :  RESET-NVRAM (enter)  RESET-ALL (enter)  3° Now the mac should restart itself and the port should function properly again.  If it still doesn't work, then it means that the PHY is damaged.
http://www.hardmac.com/articles/16/
From Kappy post:
922 is only used in dual drive cases to provide a "build-in firmware RAID support"
912 or 912+ is FW800, the "+" means USB2
911 is FW400
924 adds eSATA support along with FW400/800
MacSales, OWC Tech Support library is where I would go first, as they do tend to have or links to, firmware updates for Oxford.
From Wiebetech:
I just upgraded my Mac OS, and now I'm having trouble with my FireWire device. What can I do?
A: With nearly every OS update Apple releases, some external drives are not recognized after the update. The typical symptom is that the device will not mount but the volume is visible and grayed out in Disk Utility. This means that the device is working properly, but the OS does not recognize the volume as mountable. Sometimes the drive does not show up at all.
The first thing to do is to see if repairing Permissions with Apple's Disk Utility First Aid feature solves the problem. If not, try repairing the disk with First Aid. Another possible solution is to zap the PRAM. This is done with a keyboard command while rebooting. Restart your computer and hold down the Command, Option, P and R keys. Consult the Apple web site for details.
If this does not work, then try pushing the PMMU reset button on the logic board. Consult the Apple web site for locations of the button for your Mac. If the drive still does not show up, shut down, disconnect all peripheral devices, and boot from the Mac OS Installation CD. The later the OS version, the better. Do not reinstall the OS, but when the Installer is loaded up and ready to begin, go to the File menu and use the Disk Utility program. Connect the drive that is having problems, then start the Disk Utility application. If you see the external drive and it is not grayed out, you know the drive is okay. Run Disk First Aid on it anyway. Then run it on your internal boot drive while you are at it. When done, unmount the external drive and UNPLUG it! Then restart the Mac.
When the Mac has restarted and is running on the internal boot drive, reconnect the external drive.

Compag Laptop Right Side USB Port not working

I have a week old Compaq CQ56-115DX. Today for the first time I tried using a flash drive, first in the port on the right side. I didn't get any tones or pop-ups, like you'd normally expect. Then I tried the two on the left side. No problem with them. I wonder if this right-side port has some special configuration, like for some specific use that wouldn't respond to a flash drive. I see no alerts (yellow triangles) in Device Manager. I have read a few things on the Web about reinstalling USB devices, but thought I'd check here first for advice.
Solved!
Go to Solution.

That wouldn't be the problem (a dedicated port). The frontside ports of some machines have less power then rear facing ones in general, due to how they are connected, but in your situation, this wouldn't apply. I would definitely try the reinstallation of the USB drivers (uninstall and allow to refind) and if not, bring it back to the store since by your post, you indicate it's within the return period (14 days from date of purchase). Definitely, all your USB ports should be working.
To receive your in-store service, you will need to take your computer to your nearest Best Buy location. When you arrive at the store, please take your computer directly to the Geek Squad counter where one of the Counter Intelligence Agents will be happy to help you. I would take everything with you (box and all) in the event that an exchange is needed of that device.
I am a Bestbuy employee who volunteers on these boards on my own time. I am not paid for posting here, and you should understand that my opinions are exactly that - opinions. I do not represent Bestbuy in any way.
: Open Mailbox

USB ports not working properly

I have a pavillion dv4 1123us - old. It is not recognizing usb devices - although the usb ports are still providing power. I have tried reinstalling the chipset and reinstalling the usb ports by deleting from device manager. Intermittently, my modem seems to fade in and out but is easy to reset - just annoying. I have tried to find a way to reinstall the bios but have been unsuccessful. Please give suggestions.

USB devices can be rather problematic as you probably already know. Thus I'd start the troubleshooting process in this situation by plugging devices (one at a time) directly into the Mac, dispensing with the hub, to see whether problems continue or not. If they do, then it means the hub is not to blame while it the problems don't recur, the hub is the culprit and would warrant being replaced.
Be aware however, that since USB is controlled by the CPU, the rate at which data streams is dependent to some degree on what else the system is doing. Thus you can help reduce issues by ensuring the system isn't busy with other tasks while you have something critical going on via USB. Or, as you discovered with MP3 playback, use firewire instead. Firewire is controlled by a dedicated controller, so performance doesn't vary with system load. That's why it is generally recommended that for situations where data needs to be streamed to or from external devices such as video cameras, hard drives, DVD burners etc, these are best connected via FW rather than USB.

One USB Port not Working Properly on MacBook Pro 3,1

I have an older macbook 3,1 running Mavericks OS and recently one of my left USB ports has not been:
1) able to eject external hard drives plugged into it (I have to force eject)-instead it gives me a message that one or more programs may be using it (even though I don't have any programs using it). The hard drive is being powered by USB has a 3.0 connection although this wasn't a problem in the past... I tried the other USB port and it can eject just fine from that port.
2)Intermittent communication with mouse.
Not sure if this is a hardware issue but when I try to run diagnostics on this laptop by holding down the "D" key at startup it doesn't take me to diagnostics. I no longer have the discs for this laptop (containing said hardware test) so I can't boot the diagnostics from that discs. In lieu of a hardware test I opened CONSOLE and did a search for USB and there were a couple of these messages:
8/29/14 12:13:43.000 AM kernel[0]: **** [IOBluetoothHostControllerUSBTransport][SuspendDevice] -- Suspend -- suspendDeviceCallResult = 0x0000 (kIOReturnSuccess) -- 0xdc00 ****
Is this a logic board issue? Would rolling my OS back to pre-Mavericks work? The problem didn't emerge right when I updated to Mavericks however I have had luck changing OS stuff (updating or rolling back) with faulty USBs...
Here are other troubleshooting methods I have attempted with no success:
-Disk Utlity (repair disk and permissions)
-RESET PRAM NVRAM
-Remove battery
-RESET SMC
-Shut Down
-Run Disk Utility @ startup
I'd love to get access to a Hardware Test compatible with my macbook. The links I have found online are to incomplete files. If someone @ Apple could send some Hardware diagnostics tool my way via a disk image that would be perfect.

Did you boot into Recovery or try & run OS X Utilities, to attempt a test?
Depending on the computer, that may be your best bet, short of taking
the computer to an Apple Store with Genius bar; or to an AASP who is
trained in Apple repair & testing services.
A replacement of original install restore DVD with the correct AHT on
a bootable DVD, could be obtained by contacting Apple support or
the main online Apple sales, or applecare; there would be a fee.
They'd need to know the Serial Number and product info, and you'd
have to provide a form of payment in order to get replacement discs;
and if the computer is way too old, those may be harder to get now.
The main system tools could be installed in Recovery partition.
And Ms Sammit may have answered this.
Good luck & happy computing!
edited

USB ports not working in Windows-7 on MacBook Pro Retina Late 2013 after Bootcamp installation

1) INSTALLATION
Using Bootcamp (v. 5.1.1, OS X Mavericks) in combination with an original Microsoft installation DVD disc using an external optical CD/DVD drive. Note, the installation is NOT from an ISO image. In the Bootcamp setup window only the lower two of the three setup options are clicked, namely a) to download Windows-7 drivers to a USB stick, and b) to partition the harddrive and then to install Windows.
2) PROBLEM
After the initial Windows-7 installation no devices attached to the USB ports can be found under Windows-7. The ports are dead. Also the WLAN did not work, so no internet connection was possible.
3) CAUSE
The problem is caused when you use a USB 3.0 stick as destination for the Bootcamp driver downloads. It seems that Windows-7 cannot recognize the USB 3.0 stick properly during the Bootcamp/Windows installation process, thus failing to do perform a proper installation of the Windows-7 drivers.
4) SOLUTION
Use a USB 2.0 stick and everything will work perfectly.
Follow these steps in order:
1) Connect your external DVD drive to a USB port and insert the Windows installation disc
2) Start the Bootcamp utility
3) In Bootcamp, remove the failed Windows-7 installation and partition
4) In Bootcamp, redo the entire Bootcamp process, but this time using a USB 2.0 stick
5) Follow all further steps in Bootcamp and later in the Windows-7 installation process
6) At the end of the installation procedures you will be asked to confirm the installation of all Bootcamp/Windows drivers.
7) Bootcamp installs all the drivers and your Windows-7 installation will work perfectly.

Ok, where is this Intel driver? There is no such thing "program manager" so I am guessing you mean the Programs and features control panel, but on my machine that whole window is blank after a clean install. I still cannot get the USB ports to activate. Two fresh installs and several different USB sticks later and no luck. Should I just give up and go to Windows 8.1? I really need Windows 7 to work if at all possible. Other devices shows one USB controller without driver software so I suppose that's the culprit. There are other USB devices installed under the USB section of Device Manager, but they apparently have nothing to do with the USB ports themselves, just devices like the trackpad etc. I've spent two hours on this so far and it's getting out of control. Why doesn't this work with generic USB drivers?

USB port not responding

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