Troubleshooting your USB ports

http://docs.info.apple.com/article.html?artnum=301343
Technical Contributor: E. Lowry, Chad Rebel Last Modified on January 26, 2006
If your Microsoft Windows-compatible laptop or portable computer is configured to conserve power by turning off power on the USB bus, it might not recognize a connected iPod. To resolve this issue, turn USB bus power back on by doing the following:
On the Start menu, click Control Panel.
Double-click the System icon.
Click the Hardware tab.
Click Device Manager.
Scroll down the list of devices to the Universal Serial Bus controllers
Click the plus icon next to the Universal Serial Bus controllers.
Double-click one of the indented USB Root Hub entries.
Click the Power Management tab.
Deselect the "Allow the computer to turn off this device to save power" option.
Click the OK button at the bottom of the window.
Restart the computer.

I used three Macs to sync my iPhone 3GS. I used the two G4s to sync and update. I did use a USB hub on the main G4. Lost a port after each use. Then I used the Intel. After the first use, I noticed that the USB port used did not work after applying app updates. A hub was used during this sync. The message I get on the G4 Open Firmware is : USB Setup Error: 5c000000 80002. I still have three available and usable ports on the Intel Mac. Just thought it was coincidental that this occurred on both types of Macs. Not going to update or sync on this one again.

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Making Your USB port Work For You

I'm thrilled we now have a new board to get our customers’ feedback! My name is Alysia Eve and I am the Worldwide Product Portfolio Marketing Manager for ThinkPad. Our team is responsible for developing, building and launching new ThinkPad products. As we look to the future we want YOUR feedback to help shape our products and features. Our goal is to develop products that not only meet your needs but you love owning and using.
For our first post, we are looking for input and thoughts about our Always-On USB feature. The Always-On USB feature is indicated on the system by a USB symbol with a power plug next to it. The Always-On USB port allows users to charge external devices even when your computer is in sleep or hibernation mode.
We would appreciate your input on the following questions:
Do you know one of the USB ports can charge your cell phone even when the PC is turned off?
Do you know from 2013, ThinkPad’s have a rapid charge feature on one of the USB port to more quickly charge your cell phone?
Does the battery icon next to the USB port sufficiently indicate that you can rapidly charge your phone?
Do you find this feature valuable?
Would you use this instead of your cell phone charger on a trip?
We really appreciate your thoughts!

Hello,
In response to your questions:
Q1: Do you know one of the USB ports can charge your cell phone even when the PC is turned off?
A1: Yes, assuming it is enabled in the BIOS/UEFI firmware.
Q2: Do you know from 2013, ThinkPad’s have a rapid charge feature on one of the USB port to more quickly charge your cell phone?
A2: Yes, assuming it works with the various devices I carry, all of which have different, incompatible high-current charging modes.
Q3: Does the battery icon next to the USB port sufficiently indicate that you can rapidly charge your phone?
A3: I've rarely needed to use it, since I carry a small external USB charger with me (4.2 amp 2×USB charger, international voltage compatible).
Q4: Do you find this feature valuable?
A4: I've used it on occasion, but it doesn't offer a much additional functionality beyond what I already carry with me.
Q5: Would you use this instead of your cell phone charger on a trip?
A5: No, I never travel without an external USB cell phone charger. It is more convenient to use an external USB charger and put it away when finished than it is to take out my entire notebook and have it charge a single device at a rate more slowly than the portable charger does.
Comments:
I typically travel with two smartphones, a 4G wireless hotspot, a tablet, an ebook reader and a Bluetooth headset, all of which charge via micro USB jacks.
Regards,
Aryeh Goretsky

Did you know that your iPhone will burn up your USB ports?

I have two Power Macs, Power PC G4s. After backing up my phone on both of these computers, the USB port does not work. What's up with that and how do I get the port to become usable again?

I used three Macs to sync my iPhone 3GS. I used the two G4s to sync and update. I did use a USB hub on the main G4. Lost a port after each use. Then I used the Intel. After the first use, I noticed that the USB port used did not work after applying app updates. A hub was used during this sync. The message I get on the G4 Open Firmware is : USB Setup Error: 5c000000 80002. I still have three available and usable ports on the Intel Mac. Just thought it was coincidental that this occurred on both types of Macs. Not going to update or sync on this one again.

How to do a security wipe if phone is stuck on start-up screen and your micro-usb port is also broken?

Good day
A week or so ago, my phone just out of the blue decided that it would not initiate fully anymore. It was laying on charge and when i took it off after an hour or so, it just stuck on the service provider's screen before saying "loading personal settings". I was informed that my os needed to be reinstalled, the problem is, my usb port ion my phone is also broken. I took the phone in to a repair guy, but he wants to ask me an idiotic price to fix it and says he is able to do so without using my usb port? Is there any way you can wipe your Blackberry 8520 and reinstall an O.S if your usb port on the phone is broken? Please, this is a matter of life and death as there are a hell of a load of contacts, documents and emails i would like to save, but if not able to, I can handle that too, just need the phone to work, it's of the highest importance!
Thank you so much in advance.
Juan

I take it that you do not have a recent back up of your phone's data?
Try starting your 8520 in Safe Mode.
Article ID: KB17877 How to start a BlackBerry smartphone in Safe Mode http://www.blackberry.com/btsc/KB17877
If you can do that, you can get to the Security wipe function, but without a good USB port, I am not sure how you're going to load the OS. But try Safe Mode first.
1. If any post helps you please click the below the post(s) that helped you.
2. Please resolve your thread by marking the post "Solution?" which solved it for you!
3. Install free BlackBerry Protect today for backups of contacts and data.
4. Guide to Unlocking your BlackBerry & Unlock Codes
Join our BBM Channels (Beta)
BlackBerry Support Forums Channel
PIN: C0001B7B4 Display/Scan Bar Code
Knowledge Base Updates
PIN: C0005A9AA Display/Scan Bar Code

USB ports are not working and I can't figure out what to do!

My laptop is a HP Pavilion dv4-1225dx Entertainment Notebook. I've had it for almost three years now. It is running Windows Vista, the same it came with. The problem has only just recently started or was just discovered.
My problem is that the two USB ports in the side do nothing when something is plugged into them. The metal part of the USB devices gets hot but no lights come on the flashdrive and the camera doesn't act like it is plugged in at all. I've looked through Device Manager and it says they are working fine and the correct driver is installed already. There is also no older driver to rollback to. I've tried deleting them, disabling them, and everything that has been suggested online. I even flashed my BIOS from F.33 to F.55, whatever that means, and still nothing.
Does anyone know how to fix this problem? I am a filmmaker and desperatley need my USB ports. Any help would be appreciated greatly

USB ports must be enabled in order for them to work. If you disabled them it is possible that they still are disabled.
If that is the case, have you tried any of these? http://h10025.www1.hp.com/ewfrf/wc/document?docname=c00820529&tmp_task=solveCategory&lc=en&dlc=en&cc...
By the way, even though Windows XP troubleshooting may not seem to apply to your situation, sometimes these sorts of errors and problems still happen in Windows Vista. It is rarer but it still happens. One Windows XP based solution can be found here: http://h10025.www1.hp.com/ewfrf/wc/document?docname=c00035365&tmp_task=solveCategory&lc=en&dlc=en&cc...
Also, take a look at power management settings for your USB hub and/or USB ports. If they are enabled, try going to Computer Management, Device Manager, and then right click on the USB ports and select Properties. Following this, click the Power Management tab and uncheck the option "Allow the computer to turn off this device to save power" and click OK and exit out of Device Manager.
Odd as it seems, sometimes a restart is necessary for this to work completely.
Also, if you have tried removing the USB Hub drivers according to HP methods, you need to make sure that nothing is plugged into the Ports when you remove them. Often, a restart still is necessary even if some techs do not think to instruct you to do so. After a restart, allow the drivers to reinstall--all of them. Sometimes you still will need to restart your computer again afterward. This sometimes takes a few minutes. But, you must in any case make sure that nothing is plugged into the ports.
You may also want to check to see if your computer has specific drivers for your USB ports rather than the generic ones. If so, running the option for restoring drivers in HP Application Recovery will fix this. If they are there you will see the USB drivers listed.
On rare occasion, there is a problem with a device further down the tree than the USB ports and/or USB hubs themselves. These problems are most often fixed by removing the device that controls the USB Hub, such as the devices attached to the PCI Bus and connected to the USB. You will see where these are connected by changing the view to "Devices by Connection" rather than the "Devices by Type" option.
Let me know your status, please, after you have tried these options. If you have already tried them all out, let me know that, too and we can see if there is another option for you to try.

Macbook Pro 15" USB PORT DOESN'T RECOGNIZE ANY DEVICE.

I got my macbook pro 15" for about 1 year and 2 weeks ago, when I turned on my macbook and put my mouse ( Death Adder) into the USB PORT, my macbook DOESN'T RECOGNIZE IT. There are 2 usb ports on my macbook, I tried both port and there was only one port work correctly, the other one didn't work at all, I also tried to put my memory stick, external hard drive, vodafone 3g usb, ipod,....into that USB PORT but non of them worked. Is there any one here have the same problem???? Can you guy help me please. I stay quite far away from Apple Store so it is hard to bring it to repair. I tried to reset SMC, Update Software,...but still not work...HELP ME PLEASE...

I can't fault your troubleshooting. Sounds like a bad port.
Home remedies are limited. You can grab a magnifier and shine a flashlight in there. If you see any foreign material, use a toothpick or other non-conductive tool to extract it. If you can, give it a good blast of (dry, canned) compressed air to blow any particles loose.
Sometimes you can trick a flaky USB port into working at least intermittently by plugging in an extension cable or right-angle connector. Play with a device that lights up so it's easy to see whether it's working.
Take a hard look inside the connectors at the end of your Death Adder and other frequently-used devices. If you see any corrosion or bent pins, that's what damaged your USB port.
If the port requires physical repair, it's best to use Apple or an authorized dealer because if they make things worse while trying to fix it, they have to make it right. Joe's Appliance isn't similarly accountable.
If you need more USB ports, ExpressCard to USB adapters are dirt cheap.
Good luck.

Where do I find my device that I've plugged into my usb port?

I have just purchased a MacBook Pro. I have never had a Mac before so I'm not familiar with correct terminology but....when I plug something into my USB port (camera, iphone, whatever) where do I find it??? I know the connection is made but nothing comes up on the desktop to show how to access the device? I can't find it in the finder, file, or anywhere.

Your System Profiler app in your Utilities folder will tell you what is plugged into your USB ports.
17" 2.2GHz i7 Quad-Core MacBook Pro  8G RAM  750G HD + OCZ Vertex 3 SSD Boot HD 
Got problems with your Apple iDevice-like iPhone, iPad or iPod touch? Try Troubleshooting 101

MacBook Pro USB ports only sorta working...

Both USB ports on my MacBook Pro have stopped being recognized. I can still synchronize my iPhone, but cannot use thumb drives or external hard drives. I've tried all the previously suggested remedies to no avail. Other thoughts, please.

Hey deanfromjensen beach,
Thank you for visiting Apple Support Communities.
That is odd that your USB ports are working to sync your iPhone but not working with thumb drives or hard drives. Do USB keyboards or mice work?
There is an article for help troubleshooting USB in Yosemite.
OS X Yosemite: If a USB device isn’t working
Also check the troubleshooting in this article:
USB and FireWire Quick Assist - Apple Support
Please let us know how it goes,
Nubz

USB port not being recognised

Hello,
When I plug in my mouse, the light leds of the mouse light up, however my mac does not recognise it (it doesnt work)
The same goes with a USB flashstick, once i plug it in either of the 2 ports, the USB flashes, however my mac does not regonise it.
It's been going on for a long time, resetting does not work as well as the PRAM reset
Does anyone have any solutions?

Hello sqvic,
The following articles provide some useful tips and information that can help get your USB ports working.
OS X Mavericks: If a USB device isn’t working
http://support.apple.com/kb/PH13876
USB: Troubleshooting Error Messages
http://support.apple.com/kb/TA25618
Cheers,
Allen

USB port not being shown

I picked up a Toshiba Satellite 325 CDS at a garage sale and plan to use it for Ham radio and electronic hobbyist pursuits. I'm running Windows 98SE. Everything works well except the USB 2.0 port, which is not being recognized in the Windows Explorer listing of available drives. A memory stick inserted in the drive does not show up. I have deleted the USB and let it be reinstalled, to no avail. What proceedures can I follow to identify the problem?
piwi

Hello sqvic,
The following articles provide some useful tips and information that can help get your USB ports working.
OS X Mavericks: If a USB device isn’t working
http://support.apple.com/kb/PH13876
USB: Troubleshooting Error Messages
http://support.apple.com/kb/TA25618
Cheers,
Allen

If you're having problems with USB ports, read on...

i'm reading that alot of people on here are having problems with their front (or top) usb on their cases not working with their k7n2 boards. i have come across the correct solution to this problem in one of the posts (after having solved the problem on my own), however noone has posted the solution by itself on this forum so everyone can easily see it.
The trick is to make sure that pin 10 (at least on a K7n2 delta-L), the pin labeled USBOC (USB Open Connection), is wired to NOTHING. If the connector to your front usb ports is fused into one giant connector and it HAS a wire that will connect to this pin (labeled GND2 or Shield or something), CUT THAT WIRE. Pin 10 on JUSB2 (at least on a K7n2 delta-L) must be OPEN. If this pin IS connected to something (even if it is only GND), the motherboard will think something is connected to this usb port and you will get many unknown devices listed in your windows device manager and the rest of your usb ports may or may not work.
As a general rule of thumb, if a pin on a motherboard is labeled OC for "Open Connection" and you wire something to it, you're asking for trouble.
If you cannot understand this you should not be attempting to wire a motherboard in the first place.
Here is a picture to go along with this discussion. If you cannot see this picture, I am sorry for it has probably been removed from the place I posted it online as I cannot attach pictures physically to this post. If someone here has a way to permanently host this picture and post it to this thread permanently, that would be wonderful.
In summary: all usb ports/headers have only four pins associated with it (VCC, USB+, USB-, GND). If the connector (whether it's one big connector or individual sockets) to your front/top usb port has 5 sockets, don't connect the 5th socket to anything. That goes for any case/motherboard combination. This is what i'm talking about above. I have no idea why motherboard and case manufacturers have a 5th pin involved in any way on either the pin or socket side. It is not used for usb.
EDIT: I just noticed this has already been discussed in the trouble shooting guide in the above sticky post. oh well, now we have a pretty picture to go along with it (i hope).

:-D)Hello guys,
as promised I come back here to give the results of my tests... and I have to say that you saved my day (even if I had to open back 60 secured cases).
So the solution was the right one, when I unplugged the "ground" end of the front USB connector cable from the USBOC pin, those connectors finally worked as expected with USB 2.0 compliant devices.
So thank you really much for this very usefull information !
And even if maybe it's not only MSI's fault, I still believe that more information on those connectors in the user's manual would be really usefull (who knows what USBOC means except a few people and who could imagine that pluggin on it a "ground" cable would make it unserviceable ??). And who ever saw a user's manual bundled with a case ?? it's pretty unusual
Hope that someone at MSI will read that and take it into consideration, not for me (because now I'm aware) but for the thousands other consumers that will feel a little bit "annoyed" with that issue. I don't think that adding one line about it in user's manuals would be so much expensive
But I'm quite lucky myself... being able to understand and write english (even if I still have some progress to do ) gave me the possibility to find the solution... but a lot of my french fellows can't do that... and there's no french forum here... How can they do ? They rely on user's manual
Best regards,
Nicolas

IPnone 4s not recognized by Envy dv7-7333cl rnning Windows 8 when plugged into usb port

Laptop does not recognize iPhone 4s when plugged into any of the 4 usb ports. All usb drivers are up to date. All Win 8 and HP udates have been installed and are current. Ports do recognize memory sticks so seem to be working. Is there a special driver needed for iPhone?
This question was solved.
View Solution.

Hey texasbootz,
I'll have to get you to answer a few questions to understand what is going on exactly:
When the iPhone is plugged into the notebook, does it charge?
When the iPhone is plugged into the notebook, does it show up in device manager?
Is iTunes installed?
If it is not charged when plugged in, it is possible that the cable you are using isn't functioning properly, and you may need a replacement. Or, the iPhone itself is having some issues.
In any case, since other devices are working in all of your USB ports, it is possible that its either a software issue (with the iPhone's drivers) or an issue with the iPhone case. You'll have to contact Apple for support on either of those issues. I'd suggest trying to re/install iTunes, see if that fixes it, then to contact Apple.
Hope this helps!
I am an HP employee.
• Say thanks by clicking the 'Thumbs Up' button on the left
• Make it easier for other people to find solutions, by marking my answer with 'Accept as Solution' if it solves your issue

Updated OS X Mavericks and now USB ports and MS Office apps won't work. How do I fix this?

I updated my MacBook Pro (mid 2012) to OS X Mavericks 10.9.4 and now my USB ports and MS Office apps won't work. What do I do to fix this?

What system version were you running before you updated to 10.9.4? Another 10.9.x or something earlier?
What version of Office? 2004, 2008, or 2011?
Were you aware that Office 2004 does not run on recent versions of the system?
When you say your USB ports do not work, on what are you determining that?
Were you aware that Mavericks does not display external disk volumes by default?

Keyboard malfunction and shorted USB port

Hey all, I've got a question regarding my Apple USB keyboard. Just last night, I spilled a few drops of coffee onto my keyboard. Honestly, it was just a few drops...most spilled onto the desk itself. Now, the three top row of keys on the numeric keypad don't work, along with the right SHIFT key. What gives? Is there something I can do to fix this problem?
Also, at the same time, I noticed that one of the three USB ports in the back of the iMac stopped working. And funny enough, it was NOT the usb port that the keyboard was plugged into. Is there a way to reactivate this USB port? Can spilling a few drops of liquid onto a keyboard be enough to short out the USB internal hub?
Thanks in advance!
David
iMac G5 2GHz Mac OS X (10.4.6) 1GB RAM, 160GB Hard Drive

Hello,
Inside the keyboard, there are two plastic sheets that have traces on them. When you press the key, it presses the two plastic sheets together at a specific point. This contact tells the computer which key you pressed.
If you get liquid in there, it can come between the two sheets, and prevent contact from being made. So, most likely, you need to open the keyboard and dry out the liquid between those two sheets (Using a clean and soft towel).
You can read more about how the keyboard is constructed and how to clean it in one of my previous answers here:
http://discussions.apple.com/thread.jspa?messageID=2791931&#2791931
As for the problem of your USB port, you might try just turning the computer off and back on. If they get shorted (or have too much power drawn from them), then the computer will deactivate that port until you have restarted your computer. So, give that a try.
I hope this helps.
Let us know if you have other questions.
P.S., if you'd like, go ahead and click the "Helpful" or "Solved" buttons on any of the posts / replies above if you feel they were helpful or adequately answered your question.

Hi. Anyone have a problem running a 4g stick through a usb port on a MacBook Air running Mavericks? Did you fix it? If so, how? Thanks.

I can run everything through the usb port, including another manufacturer's 4G stick. The 4G stick that doesnt work on my Air works on my son's. The only difference I can find? Mavericks!

whats it formatted as? Alas junker thumb drives fall like rain everywhere.
Do you have another stick / thumb drive you can verify your USB port with?
Stick with Sandisk or otherwise reputable memory sticks for your Macbook.
What do you mean by "another manufacturer"? Apple doesnt make thumb drives, .....no computer mfg. makes them, however HP has their name on one

Troubleshooting your USB ports

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