USB Device Not Recognized when direct to computer, works through hub

I have a rather bizarre problem (which I've already written about on Tom's Hardware) regarding my Samsung Galaxy S III phone and my ThinkPad T440p. At first I thought it was just a driver issue, but now it seems to be more hardware-related.
As I explained in my other post, the phone works (in both Windows 7 and Linux) when plugged in through a USB hub, but not when connected directly to the computer. My computer is still under warranty (thank goodness), but I'd like to avoid sending it in if possible, as it's my only computer.
Any suggestions? Thanks!

I just tried plugging another Samsung phone in with my USB cable and it has the same problem. If I plug it in with another cable though, it works. I use the same cable with my phone and nothing happens. No charging, nothing. At least with my "bad" cable it charges and the computer complains about it.
At this point I'll get another "Samsung USB cable" (supposed to work, eh?) and see what my luck is. This cable is less than a year old though. I already replaced the original. Maybe Samsung went too cheap again... It wouldn't be the first time. Their push buttons fail left and right.

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Well start with these articles and see if that gets you anywhere...
iPod is not recognized properly by computer when USB drivers are not installed properly or are out of date
http://docs.info.apple.com/article.html?artnum=305136
iTunes for Windows: iTunes 7 doesn't recognize iPod
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http://docs.info.apple.com/article.html?artnum=93651
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"USB device not recognized" when ipod plugged in???

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When I plug my ipod into my laptop I get the message: "USB device not recognized." It says the device has malfunctioned!!! If I click on this error message it says my ipod is an unknown device and no drivers are installed for it???
It was working fine until a few days ago. If i reset it I can charge it up but that's all, it still does not appear in itunes or on my computer.
I've tried eveything on the help website but nothing works! Can anyone help?!
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ok my question is do you have a mac or windows based laptop
here is why and what happened to my ipod mini
my ipod mini was connected to my macintosh charging while i was using my imac and it came up with a system update 10.4.3 i installed it and finished installing it and afterwards my apple wouldn't recongnize my ipod mini or even display it one the screen i found out by myself that when the apple update got to the end of the update it installed new hard drive drivers but also installed the drivers on the ipod mini which locked out the mini's internal hard drive and my mini then stop responding it would play music and charge but wouldn't connect to the computer
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warning: i don't know how to fix this on a ipod in windows so if this is a windows based laptop you need to find someone witha macintosh to do this with sorry

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Hello ematy,
And welcome to Apple discussions!
I don't have very many suggestions for you except maybe take a look at and try the suggest troubleshooting steps provided in this Apple support document.
[iPhone or iPod is not recognized properly by computer when USB drivers are not installed properly or are out of date|http://support.apple.com/kb/TS1538]
And perhaps this one as well.
http://support.apple.com/kb/ts1369
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try reseting the phone
RESET DEVICE
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Hi there
I am constantly getting a USB device not recognized when I plug in my nano. I never got this before and as a result all it does is charge. It is not showing up in iTunes anymore so I cannot remove or dowload new songs on to my nano anymore. I have tried to go into control panel and the USB Hub device manager to deselect the power outage option but that did nothing. Please help! I seem to encounter trouble with any accessories Apple sell, whether they be earphones or USB cables.
Thanks

i'm getting the same problem too.
my ipod is nearly about 1 year old.
i use my ipod nano 2GB for music and as a flashdrive to store my uni work.
this morning accessing my files in the ipod on the computer was fine.
then later in the afternoon when i connected it into a computer i keep getting the msg 'usb device not recognised'. also itunes dont recognise my ipod either anymore.
i use Windows XP at home and uni.
i've tried my ipod on at least three different computers at uni and just tried at home.
same msg came up 'unknown device' from windows.
i've read the other posts in the forum and it mentioned about 5 R's and resetting it.
BUT the main problem is i DONT have any back up of my uni work and files and they are really really important so i CANT reset the ipod otherwise i will lose all the important things...my assignments, projects, photos...I was meant to make a back up b4 i start uni next monday but i guess now is TOO LATE.
I've noticed that the socket of the ipod dock conector to usb cable, that connects to the ipod is slightly split open.
Would this be causing the problem?
I am in Utter Despair and Desperation at the moment.
Can anyone help me PLEASE?
i would be sooooo grateful for your kind help and time.
kind regards,
a student who is on the verge of a breakdown due to this problem.
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i have a belkin usb 2.0 device with 2 ports. it is plugged into my ibm thinkpad laptop. the mouse works fine in both ports -as does a photo scanner. but for some reason, the ipod shuffle is not recognized - i keep getting a green blinking lite and a message that says "usb device not recognized". funny, because the shuffle worked fine the other week when i installed all the software after purchase. i've updated windows software and reset the ipod. i've read elsewhere that some people have had the same problem - and that it was a malfunctioning usb port on the ipod shuffle. if so, what a piece of junk. maybe i just need to call tech support and ask for a new shuffle - i don't think that downloading the updater, etc. will help. any suggestions? thanks.

If it's working with other computers (using the same USB cable to connect the shuffle), then the problem is probably related to your computer.
If you connect something else to the same USB port (like a USB flash drive if you have one), does it work?
If you are using a USB hub to connect the shuffle, be sure to try a port that is directly on the computer. And try more than one port that is on the computer.
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I have this EXACT same problem. And my ports are definitely 2.0 USB. I've uninstalled and installed all the iPod, iTunes and Quicktime components at least 4 times. I've reset the iPod. I've read everything I can get my hands on... nuthin'... nada...
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My 6th generation nano isn't recognized by my computer. When I plug it in an error message pops up, which says "USB Device Not Recognized". Does anyone know how to start trouble shooting this. I updated both windows and iTunes.

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Work through all the suggestions in this Apple support document first.
iPod: Does not appear in Windows or iTunes and Device Manager is empty
B-rock

USB Device Not Recognized when direct to computer, works through hub

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